Photonics of micro and nano structured materials

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Photonics of micro and nano structured materials (en)
Фотоника микро и нано структурних материјала (sr)
Fotonika mikro i nano strukturnih materijala (sr_RS)
Authors

Publications

On the long-distance charge transport in DNA-like macromolecules

Čevizović, Dalibor; Chizhov, A.V.; Ivić, Zoran; Reshetnyak, A.A.

(2021)

TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Chizhov, A.V.
AU  - Ivić, Zoran
AU  - Reshetnyak, A.A.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9158
AB  - In this paper, we investigate the possibility of stable migration of charge carriers over long distances in DNA-like macromolecular structures in the form of an adiabatic soliton and derive the conditions for the formation of solitons. We find two types of soliton solutions: symmetric and antisymmetric. Comparing the energy of both types of soliton solutions with the energy of free extra charge, we find the region of the system parameters in which the soliton states are more energetically favorable than the states of quasi-free charges. At the same time, which of the two mentioned soliton solutions corresponds to an energetically favorable state depends on the ratio of the energy parameters of the molecular structure. © 2021, ITMO University. All rights reserved.
T2  - Nanosystems: Physics, Chemistry, Mathematics
T1  - On the long-distance charge transport in DNA-like macromolecules
VL  - 12
IS  - 1
SP  - 32
EP  - 41
DO  - 10.17586/2220-8054-2021-12-1-32-41
ER  - 
@article{
author = "Čevizović, Dalibor and Chizhov, A.V. and Ivić, Zoran and Reshetnyak, A.A.",
year = "2021",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9158",
abstract = "In this paper, we investigate the possibility of stable migration of charge carriers over long distances in DNA-like macromolecular structures in the form of an adiabatic soliton and derive the conditions for the formation of solitons. We find two types of soliton solutions: symmetric and antisymmetric. Comparing the energy of both types of soliton solutions with the energy of free extra charge, we find the region of the system parameters in which the soliton states are more energetically favorable than the states of quasi-free charges. At the same time, which of the two mentioned soliton solutions corresponds to an energetically favorable state depends on the ratio of the energy parameters of the molecular structure. © 2021, ITMO University. All rights reserved.",
journal = "Nanosystems: Physics, Chemistry, Mathematics",
title = "On the long-distance charge transport in DNA-like macromolecules",
volume = "12",
number = "1",
pages = "32-41",
doi = "10.17586/2220-8054-2021-12-1-32-41"
}
Čevizović, D., Chizhov, A.V., Ivić, Z.,& Reshetnyak, A.A. (2021). On the long-distance charge transport in DNA-like macromolecules.
Nanosystems: Physics, Chemistry, Mathematics, 12(1), 32-41.
https://doi.org/10.17586/2220-8054-2021-12-1-32-41
Čevizović D, Chizhov A, Ivić Z, Reshetnyak A. On the long-distance charge transport in DNA-like macromolecules. Nanosystems: Physics, Chemistry, Mathematics. 2021;12(1):32-41
Čevizović Dalibor, Chizhov A.V., Ivić Zoran, Reshetnyak A.A., "On the long-distance charge transport in DNA-like macromolecules" Nanosystems: Physics, Chemistry, Mathematics, 12, no. 1 (2021):32-41,
https://doi.org/10.17586/2220-8054-2021-12-1-32-41 .

Dispersive properties of self–induced transparency in two–level media

Ivić, Zoran; Čevizović, Dalibor; Pržulj, Željko; Lazarides, Nikos; Tsironis, Giorgos P.

(2021)

TY  - JOUR
AU  - Ivić, Zoran
AU  - Čevizović, Dalibor
AU  - Pržulj, Željko
AU  - Lazarides, Nikos
AU  - Tsironis, Giorgos P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8920
AB  - We focus on self-induced transparency (SIT) in the propagation of a pulse in a dispersive medium. The latter can be an ordinary optical medium or, more interestingly, a quantum metamaterial. In both cases we consider a sequence of two level atoms each with a characteristic resonant frequency ω0. The propagation features are controlled by the ratio of the pulse frequency ω over the dipole resonant frequency, i.e. on the quantity X=ω/ω0. We consider analytically two pulse limits, viz. the sharp line limit as well as the inhomogeneouly broadened case. In the first case we find that for pulse frequencies larger than ω0, i.e. for X>1 the SIT pulse may be fully stopped through absorption by the medium provided its time width exceeds a certain critical value. In the latter case of inhomogeneously broadened medium we find no such frequency restrictions provided the pulse is wide enough. As a result an SIT pulse can be arbitrarily arrested by the absorbing medium. This dispersion-induced pulse stopping is a manifestation of the quantum nature of the medium and of possible use in metamaterial applications. © 2020 Elsevier Ltd
T2  - Chaos, Solitons & Fractals
T1  - Dispersive properties of self–induced transparency in two–level media
VL  - 143
SP  - 110611
DO  - 10.1016/j.chaos.2020.110611
ER  - 
@article{
author = "Ivić, Zoran and Čevizović, Dalibor and Pržulj, Željko and Lazarides, Nikos and Tsironis, Giorgos P.",
year = "2021",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8920",
abstract = "We focus on self-induced transparency (SIT) in the propagation of a pulse in a dispersive medium. The latter can be an ordinary optical medium or, more interestingly, a quantum metamaterial. In both cases we consider a sequence of two level atoms each with a characteristic resonant frequency ω0. The propagation features are controlled by the ratio of the pulse frequency ω over the dipole resonant frequency, i.e. on the quantity X=ω/ω0. We consider analytically two pulse limits, viz. the sharp line limit as well as the inhomogeneouly broadened case. In the first case we find that for pulse frequencies larger than ω0, i.e. for X>1 the SIT pulse may be fully stopped through absorption by the medium provided its time width exceeds a certain critical value. In the latter case of inhomogeneously broadened medium we find no such frequency restrictions provided the pulse is wide enough. As a result an SIT pulse can be arbitrarily arrested by the absorbing medium. This dispersion-induced pulse stopping is a manifestation of the quantum nature of the medium and of possible use in metamaterial applications. © 2020 Elsevier Ltd",
journal = "Chaos, Solitons & Fractals",
title = "Dispersive properties of self–induced transparency in two–level media",
volume = "143",
pages = "110611",
doi = "10.1016/j.chaos.2020.110611"
}
Ivić, Z., Čevizović, D., Pržulj, Ž., Lazarides, N.,& Tsironis, G. P. (2021). Dispersive properties of self–induced transparency in two–level media.
Chaos, Solitons & Fractals, 143, 110611.
https://doi.org/10.1016/j.chaos.2020.110611
Ivić Z, Čevizović D, Pržulj Ž, Lazarides N, Tsironis GP. Dispersive properties of self–induced transparency in two–level media. Chaos, Solitons & Fractals. 2021;143:110611
Ivić Zoran, Čevizović Dalibor, Pržulj Željko, Lazarides Nikos, Tsironis Giorgos P., "Dispersive properties of self–induced transparency in two–level media" Chaos, Solitons & Fractals, 143 (2021):110611,
https://doi.org/10.1016/j.chaos.2020.110611 .

Biocompatibility of TiO2 prolate nanospheroids as a potential photosenzitizer in therapy of cancer

Matijević, Milica; Nakarada, Đura; Liang, Xinyue; Korićanac, Lela; Rajsiglova, Lenka; Vannucci, Luca; Nešić, Maja D.; Vranješ, Mila; Mojović, Miloš D.; Mi, Lan; Estrela-Lopis, Irina; Böttner, Julia; Šaponjić, Zoran; Petković, Marijana; Stepić, Milutin

(2020)

TY  - JOUR
AU  - Matijević, Milica
AU  - Nakarada, Đura
AU  - Liang, Xinyue
AU  - Korićanac, Lela
AU  - Rajsiglova, Lenka
AU  - Vannucci, Luca
AU  - Nešić, Maja D.
AU  - Vranješ, Mila
AU  - Mojović, Miloš D.
AU  - Mi, Lan
AU  - Estrela-Lopis, Irina
AU  - Böttner, Julia
AU  - Šaponjić, Zoran
AU  - Petković, Marijana
AU  - Stepić, Milutin
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9058
AB  - TiO2 prolatenanospheroids (PNSs) may be photosensitizers (PSs), which act by catalyzation of hydroxyl radical (∙OH) formation upon light illumination. ∙OH might, in turn, contribute to killing of cancer cells. On the other hand, there is great concern about toxicity in the dark of TiO2 nanoparticles in general. In this work, we have investigated the biocompatibility of TiO2 PNSs of the anatase crystal form (length between 100 and 300 nm and width 50 nm) in the dark with immune cells and light-induced cytotoxicity on several cancer cell lines. The effects of the treatment of different cell lines with several concentrations of TiO2 PNSs suspensions showed the specifics of cells’ viability and the intracellular localization. The results of in vitro studies obtained by cytotoxicity assays adjusted to individual cell lines’ metabolism point towards the biocompatibility of TiO2 PNSs at low and moderate concentrations in the dark, which neither kill the cells, nor induce activation of the immune system cells. Laser scanning confocal microscopy revealed that PNSs are taken up by cells, and insight into the intracellular distribution was obtained in this study.
T2  - Journal of Nanoparticle Research
T1  - Biocompatibility of TiO2 prolate nanospheroids as a potential photosenzitizer in therapy of cancer
VL  - 22
IS  - 7
SP  - 175
DO  - 10.1007/s11051-020-04899-3
ER  - 
@article{
author = "Matijević, Milica and Nakarada, Đura and Liang, Xinyue and Korićanac, Lela and Rajsiglova, Lenka and Vannucci, Luca and Nešić, Maja D. and Vranješ, Mila and Mojović, Miloš D. and Mi, Lan and Estrela-Lopis, Irina and Böttner, Julia and Šaponjić, Zoran and Petković, Marijana and Stepić, Milutin",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9058",
abstract = "TiO2 prolatenanospheroids (PNSs) may be photosensitizers (PSs), which act by catalyzation of hydroxyl radical (∙OH) formation upon light illumination. ∙OH might, in turn, contribute to killing of cancer cells. On the other hand, there is great concern about toxicity in the dark of TiO2 nanoparticles in general. In this work, we have investigated the biocompatibility of TiO2 PNSs of the anatase crystal form (length between 100 and 300 nm and width 50 nm) in the dark with immune cells and light-induced cytotoxicity on several cancer cell lines. The effects of the treatment of different cell lines with several concentrations of TiO2 PNSs suspensions showed the specifics of cells’ viability and the intracellular localization. The results of in vitro studies obtained by cytotoxicity assays adjusted to individual cell lines’ metabolism point towards the biocompatibility of TiO2 PNSs at low and moderate concentrations in the dark, which neither kill the cells, nor induce activation of the immune system cells. Laser scanning confocal microscopy revealed that PNSs are taken up by cells, and insight into the intracellular distribution was obtained in this study.",
journal = "Journal of Nanoparticle Research",
title = "Biocompatibility of TiO2 prolate nanospheroids as a potential photosenzitizer in therapy of cancer",
volume = "22",
number = "7",
pages = "175",
doi = "10.1007/s11051-020-04899-3"
}
Matijević, M., Nakarada, Đ., Liang, X., Korićanac, L., Rajsiglova, L., Vannucci, L., Nešić, M. D., Vranješ, M., Mojović, M. D., Mi, L., Estrela-Lopis, I., Böttner, J., Šaponjić, Z., Petković, M.,& Stepić, M. (2020). Biocompatibility of TiO2 prolate nanospheroids as a potential photosenzitizer in therapy of cancer.
Journal of Nanoparticle Research, 22(7), 175.
https://doi.org/10.1007/s11051-020-04899-3
Matijević M, Nakarada Đ, Liang X, Korićanac L, Rajsiglova L, Vannucci L, Nešić MD, Vranješ M, Mojović MD, Mi L, Estrela-Lopis I, Böttner J, Šaponjić Z, Petković M, Stepić M. Biocompatibility of TiO2 prolate nanospheroids as a potential photosenzitizer in therapy of cancer. Journal of Nanoparticle Research. 2020;22(7):175
Matijević Milica, Nakarada Đura, Liang Xinyue, Korićanac Lela, Rajsiglova Lenka, Vannucci Luca, Nešić Maja D., Vranješ Mila, Mojović Miloš D., Mi Lan, Estrela-Lopis Irina, Böttner Julia, Šaponjić Zoran, Petković Marijana, Stepić Milutin, "Biocompatibility of TiO2 prolate nanospheroids as a potential photosenzitizer in therapy of cancer" Journal of Nanoparticle Research, 22, no. 7 (2020):175,
https://doi.org/10.1007/s11051-020-04899-3 .

Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)

Manić, Nebojša G.; Janković, Bojan Ž.; Pijović, Milena; Waisi, Hadi; Dodevski, Vladimir; Stojiljković, Dragoslava; Jovanović, Vladimir V.

(2020)

TY  - JOUR
AU  - Manić, Nebojša G.
AU  - Janković, Bojan Ž.
AU  - Pijović, Milena
AU  - Waisi, Hadi
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir V.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8904
AB  - In order to clarify relationship between apricot kernel shell biomass slow pyrolysis mechanism and its main constituents (viz. hemicelluloses, cellulose and lignin), the reactivity effects of main constituents on pyrolysis characteristics were determined by the non-isothermal simultaneous thermal analysis. It was found that four-step (parallel) reaction model is suitable for studying the slow pyrolysis process, within the semi-global model which excludes the strong interaction between biomass constituents (pseudo-components). The application of the proposed model was allowed by the results obtained from KAS iterative isoconversional (model-free) approach. The valorization of the model was confirmed by the process optimization. The complex (cumulative) apricot kernel shell pyrolysis rate curves at different heating rates are successfully resolved into the individual decomposition rate curves (arising from thermal conversion of hemicelluloses, cellulose, and primary/secondary lignin fragments) by four-parameter Fraser–Suzuki function. Besides hemicelluloses and cellulose pyrolyses, the proposed model distinguishes primary and secondary lignin reactions, which enhance the gaseous products releasing (primarily CO and CO2 gases) and charification of the solid residue (increased the bio-char yield). © 2020, Akadémiai Kiadó, Budapest, Hungary.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)
VL  - 142
IS  - 2
SP  - 565
EP  - 579
DO  - 10.1007/s10973-020-09307-5
ER  - 
@article{
author = "Manić, Nebojša G. and Janković, Bojan Ž. and Pijović, Milena and Waisi, Hadi and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir V.",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8904",
abstract = "In order to clarify relationship between apricot kernel shell biomass slow pyrolysis mechanism and its main constituents (viz. hemicelluloses, cellulose and lignin), the reactivity effects of main constituents on pyrolysis characteristics were determined by the non-isothermal simultaneous thermal analysis. It was found that four-step (parallel) reaction model is suitable for studying the slow pyrolysis process, within the semi-global model which excludes the strong interaction between biomass constituents (pseudo-components). The application of the proposed model was allowed by the results obtained from KAS iterative isoconversional (model-free) approach. The valorization of the model was confirmed by the process optimization. The complex (cumulative) apricot kernel shell pyrolysis rate curves at different heating rates are successfully resolved into the individual decomposition rate curves (arising from thermal conversion of hemicelluloses, cellulose, and primary/secondary lignin fragments) by four-parameter Fraser–Suzuki function. Besides hemicelluloses and cellulose pyrolyses, the proposed model distinguishes primary and secondary lignin reactions, which enhance the gaseous products releasing (primarily CO and CO2 gases) and charification of the solid residue (increased the bio-char yield). © 2020, Akadémiai Kiadó, Budapest, Hungary.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)",
volume = "142",
number = "2",
pages = "565-579",
doi = "10.1007/s10973-020-09307-5"
}
Manić, N. G., Janković, B. Ž., Pijović, M., Waisi, H., Dodevski, V., Stojiljković, D.,& Jovanović, V. V. (2020). Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA).
Journal of Thermal Analysis and Calorimetry, 142(2), 565-579.
https://doi.org/10.1007/s10973-020-09307-5
Manić NG, Janković BŽ, Pijović M, Waisi H, Dodevski V, Stojiljković D, Jovanović VV. Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA). Journal of Thermal Analysis and Calorimetry. 2020;142(2):565-579
Manić Nebojša G., Janković Bojan Ž., Pijović Milena, Waisi Hadi, Dodevski Vladimir, Stojiljković Dragoslava, Jovanović Vladimir V., "Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)" Journal of Thermal Analysis and Calorimetry, 142, no. 2 (2020):565-579,
https://doi.org/10.1007/s10973-020-09307-5 .
5
4
5

Calcium ions tune the beats of cilia and flagella

Satarić, Miljko V.; Nemeš, Tomas; Satarić, Bogdan; Sekulić, Dalibor; Zdravković, Slobodan

(2020)

TY  - JOUR
AU  - Satarić, Miljko V.
AU  - Nemeš, Tomas
AU  - Satarić, Bogdan
AU  - Sekulić, Dalibor
AU  - Zdravković, Slobodan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9059
AB  - The cytoskeleton of cilia and flagella is so called axoneme a stable cylindrical architecture of nine microtubule doublets. Axoneme performs periodic bending motion by utilizing specific dynein motor family powered by ATP hydrolysis. It is still unclear how this highly organized “ciliary beat” is being initiated and strongly coordinated by the combined action of hundreds dynein motors. Based on the experimental evidences we here elaborate a plausible scenario in which actually calcium ions play the roles of catalytic activators and coordinators of dynein attachments doing it in superposition with already known mechanical control tools of “ciliary beat”. Polyelectrolyte properties of microtubules incorporated in axoneme doublets enable the formation and propagation of soliton-like “ionic clouds” of Ca2+ ions along these “coaxial nanocables”. The sliding speed of such Ca2+ “clouds” along microtubule doublets is comparable with the speed of propagation of “ciliary beat” itself. We elaborated the interplay between influx of Ca2+ ions in ciliary based body and the sliding of microtubule triplets therein. In second segment we considered how the dynein motors activated by Ca2+ ions contained within solitonic “ionic clouds” in competition with axoneme curvature regulate ciliary and flagellar beating.
T2  - Biosystems
T1  - Calcium ions tune the beats of cilia and flagella
VL  - 196
SP  - 104172
DO  - 10.1016/j.biosystems.2020.104172
ER  - 
@article{
author = "Satarić, Miljko V. and Nemeš, Tomas and Satarić, Bogdan and Sekulić, Dalibor and Zdravković, Slobodan",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9059",
abstract = "The cytoskeleton of cilia and flagella is so called axoneme a stable cylindrical architecture of nine microtubule doublets. Axoneme performs periodic bending motion by utilizing specific dynein motor family powered by ATP hydrolysis. It is still unclear how this highly organized “ciliary beat” is being initiated and strongly coordinated by the combined action of hundreds dynein motors. Based on the experimental evidences we here elaborate a plausible scenario in which actually calcium ions play the roles of catalytic activators and coordinators of dynein attachments doing it in superposition with already known mechanical control tools of “ciliary beat”. Polyelectrolyte properties of microtubules incorporated in axoneme doublets enable the formation and propagation of soliton-like “ionic clouds” of Ca2+ ions along these “coaxial nanocables”. The sliding speed of such Ca2+ “clouds” along microtubule doublets is comparable with the speed of propagation of “ciliary beat” itself. We elaborated the interplay between influx of Ca2+ ions in ciliary based body and the sliding of microtubule triplets therein. In second segment we considered how the dynein motors activated by Ca2+ ions contained within solitonic “ionic clouds” in competition with axoneme curvature regulate ciliary and flagellar beating.",
journal = "Biosystems",
title = "Calcium ions tune the beats of cilia and flagella",
volume = "196",
pages = "104172",
doi = "10.1016/j.biosystems.2020.104172"
}
Satarić, M. V., Nemeš, T., Satarić, B., Sekulić, D.,& Zdravković, S. (2020). Calcium ions tune the beats of cilia and flagella.
Biosystems, 196, 104172.
https://doi.org/10.1016/j.biosystems.2020.104172
Satarić MV, Nemeš T, Satarić B, Sekulić D, Zdravković S. Calcium ions tune the beats of cilia and flagella. Biosystems. 2020;196:104172
Satarić Miljko V., Nemeš Tomas, Satarić Bogdan, Sekulić Dalibor, Zdravković Slobodan, "Calcium ions tune the beats of cilia and flagella" Biosystems, 196 (2020):104172,
https://doi.org/10.1016/j.biosystems.2020.104172 .
2
2
2

Modulational Instability, Inter-Component Asymmetry, and Formation of Quantum Droplets in One-Dimensional Binary Bose Gases

Mithun, Thudiyangal; Maluckov, Aleksandra; Kasamatsu, Kenichi; Malomed, Boris A; Khare, Avinash

(2020)

TY  - JOUR
AU  - Mithun, Thudiyangal
AU  - Maluckov, Aleksandra
AU  - Kasamatsu, Kenichi
AU  - Malomed, Boris A
AU  - Khare, Avinash
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8977
AB  - Quantum droplets are ultradilute liquid states that emerge from the competitive interplay of two Hamiltonian terms, the mean-field energy and beyond-mean-field correction, in a weakly interacting binary Bose gas. We relate the formation of droplets in symmetric and asymmetric two-component one-dimensional boson systems to the modulational instability of a spatially uniform state driven by the beyond-mean-field term. Asymmetry between the components may be caused by their unequal populations or unequal intra-component interaction strengths. Stability of both symmetric and asymmetric droplets is investigated. Robustness of the symmetric solutions against symmetry-breaking perturbations is confirmed.
T2  - Symmetry
T1  - Modulational Instability, Inter-Component Asymmetry, and Formation of Quantum Droplets in One-Dimensional Binary Bose Gases
VL  - 12
IS  - 1
SP  - 174
DO  - 10.3390/sym12010174
ER  - 
@article{
author = "Mithun, Thudiyangal and Maluckov, Aleksandra and Kasamatsu, Kenichi and Malomed, Boris A and Khare, Avinash",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8977",
abstract = "Quantum droplets are ultradilute liquid states that emerge from the competitive interplay of two Hamiltonian terms, the mean-field energy and beyond-mean-field correction, in a weakly interacting binary Bose gas. We relate the formation of droplets in symmetric and asymmetric two-component one-dimensional boson systems to the modulational instability of a spatially uniform state driven by the beyond-mean-field term. Asymmetry between the components may be caused by their unequal populations or unequal intra-component interaction strengths. Stability of both symmetric and asymmetric droplets is investigated. Robustness of the symmetric solutions against symmetry-breaking perturbations is confirmed.",
journal = "Symmetry",
title = "Modulational Instability, Inter-Component Asymmetry, and Formation of Quantum Droplets in One-Dimensional Binary Bose Gases",
volume = "12",
number = "1",
pages = "174",
doi = "10.3390/sym12010174"
}
Mithun, T., Maluckov, A., Kasamatsu, K., Malomed, B. A.,& Khare, A. (2020). Modulational Instability, Inter-Component Asymmetry, and Formation of Quantum Droplets in One-Dimensional Binary Bose Gases.
Symmetry, 12(1), 174.
https://doi.org/10.3390/sym12010174
Mithun T, Maluckov A, Kasamatsu K, Malomed BA, Khare A. Modulational Instability, Inter-Component Asymmetry, and Formation of Quantum Droplets in One-Dimensional Binary Bose Gases. Symmetry. 2020;12(1):174
Mithun Thudiyangal, Maluckov Aleksandra, Kasamatsu Kenichi, Malomed Boris A, Khare Avinash, "Modulational Instability, Inter-Component Asymmetry, and Formation of Quantum Droplets in One-Dimensional Binary Bose Gases" Symmetry, 12, no. 1 (2020):174,
https://doi.org/10.3390/sym12010174 .
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12

Complexity of Shapiro steps

Mali, Petar; Šakota, Anđela; Tekić, Jasmina; Radošević, Slobodan; Pantić, Milan; Pavkov-Hrvojević, Milica

(2020)

TY  - JOUR
AU  - Mali, Petar
AU  - Šakota, Anđela
AU  - Tekić, Jasmina
AU  - Radošević, Slobodan
AU  - Pantić, Milan
AU  - Pavkov-Hrvojević, Milica
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8931
AB  - We demonstrate, using the example of the dc+ac driven overdamped Frenkel-Kontorova model, that an easily calculable measure of complexity can be used for the examination of Shapiro steps in the presence of thermal noise. In real systems, thermal noise causes melting or even disappearance of Shapiro steps, which makes their analysis in the standard way from the response function difficult. Unlike in the conventional approach, here, by calculating the Kolmogorov complexity of certain areas in the response function, we were able to detect Shapiro steps, measure their size with the desired precision, and examine their temperature dependence. The aim of this work is to provide scientists, particularly experimentalists, with an unconventional, but practical and easy tool for examination of Shapiro steps in real systems.
T2  - Physical Review E
T1  - Complexity of Shapiro steps
VL  - 101
IS  - 3
SP  - 032203
DO  - 10.1103/PhysRevE.101.032203
ER  - 
@article{
author = "Mali, Petar and Šakota, Anđela and Tekić, Jasmina and Radošević, Slobodan and Pantić, Milan and Pavkov-Hrvojević, Milica",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8931",
abstract = "We demonstrate, using the example of the dc+ac driven overdamped Frenkel-Kontorova model, that an easily calculable measure of complexity can be used for the examination of Shapiro steps in the presence of thermal noise. In real systems, thermal noise causes melting or even disappearance of Shapiro steps, which makes their analysis in the standard way from the response function difficult. Unlike in the conventional approach, here, by calculating the Kolmogorov complexity of certain areas in the response function, we were able to detect Shapiro steps, measure their size with the desired precision, and examine their temperature dependence. The aim of this work is to provide scientists, particularly experimentalists, with an unconventional, but practical and easy tool for examination of Shapiro steps in real systems.",
journal = "Physical Review E",
title = "Complexity of Shapiro steps",
volume = "101",
number = "3",
pages = "032203",
doi = "10.1103/PhysRevE.101.032203"
}
Mali, P., Šakota, A., Tekić, J., Radošević, S., Pantić, M.,& Pavkov-Hrvojević, M. (2020). Complexity of Shapiro steps.
Physical Review E, 101(3), 032203.
https://doi.org/10.1103/PhysRevE.101.032203
Mali P, Šakota A, Tekić J, Radošević S, Pantić M, Pavkov-Hrvojević M. Complexity of Shapiro steps. Physical Review E. 2020;101(3):032203
Mali Petar, Šakota Anđela, Tekić Jasmina, Radošević Slobodan, Pantić Milan, Pavkov-Hrvojević Milica, "Complexity of Shapiro steps" Physical Review E, 101, no. 3 (2020):032203,
https://doi.org/10.1103/PhysRevE.101.032203 .
1
3
1
3

Influence of different disorder types on Aharonov-Bohm caging in the diamond chain

Gligorić, Goran; Leykam, Daniel; Maluckov, Aleksandra

(2020)

TY  - JOUR
AU  - Gligorić, Goran
AU  - Leykam, Daniel
AU  - Maluckov, Aleksandra
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8914
AB  - The linear diamond chain with fine-tuned effective magnetic flux has a completely flat energy spectrum and compactly localized eigenmodes, forming an Aharonov-Bohm cage. We study numerically how this localization is affected by different types of disorder (static and time-evolving) relevant to recent realizations of Aharonov-Bohm cages in periodically modulated optical waveguide arrays. We demonstrate robustness of localization under static and time-periodic disorder. In contrast, nonquenched (time-dependent) disorder leads to wave-packet spreading and delocalization.
T2  - Physical Review A
T1  - Influence of different disorder types on Aharonov-Bohm caging in the diamond chain
VL  - 101
IS  - 2
SP  - 023839
DO  - 10.1103/PhysRevA.101.023839
ER  - 
@article{
author = "Gligorić, Goran and Leykam, Daniel and Maluckov, Aleksandra",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8914",
abstract = "The linear diamond chain with fine-tuned effective magnetic flux has a completely flat energy spectrum and compactly localized eigenmodes, forming an Aharonov-Bohm cage. We study numerically how this localization is affected by different types of disorder (static and time-evolving) relevant to recent realizations of Aharonov-Bohm cages in periodically modulated optical waveguide arrays. We demonstrate robustness of localization under static and time-periodic disorder. In contrast, nonquenched (time-dependent) disorder leads to wave-packet spreading and delocalization.",
journal = "Physical Review A",
title = "Influence of different disorder types on Aharonov-Bohm caging in the diamond chain",
volume = "101",
number = "2",
pages = "023839",
doi = "10.1103/PhysRevA.101.023839"
}
Gligorić, G., Leykam, D.,& Maluckov, A. (2020). Influence of different disorder types on Aharonov-Bohm caging in the diamond chain.
Physical Review A, 101(2), 023839.
https://doi.org/10.1103/PhysRevA.101.023839
Gligorić G, Leykam D, Maluckov A. Influence of different disorder types on Aharonov-Bohm caging in the diamond chain. Physical Review A. 2020;101(2):023839
Gligorić Goran, Leykam Daniel, Maluckov Aleksandra, "Influence of different disorder types on Aharonov-Bohm caging in the diamond chain" Physical Review A, 101, no. 2 (2020):023839,
https://doi.org/10.1103/PhysRevA.101.023839 .
1
3
1
2

Kinetic friction force in a three-layer model with commensurate substrates

Jia, Li-Ping; Tekić, Jasmina

(2020)

TY  - JOUR
AU  - Jia, Li-Ping
AU  - Tekić, Jasmina
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8911
AB  - A chain of harmonically interacting particles confined between two sinusoidal substrate potentials has been analysed. When the top substrate is driven through an attached spring with a constant velocity, the influence of the system parameters on the kinetic friction force was examined in the system with commensurate substrates. It was shown that the friction reached its maximum value when the equilibrium distance of the intermediate particles was an integer multiple of the space period of the upper and lower substrate potentials, which led to the maximum energy loss. This loss can be reduced by the increase of interparticle interaction of the middle layer.
T2  - Physica Scripta
T1  - Kinetic friction force in a three-layer model with commensurate substrates
VL  - 95
IS  - 5
SP  - 055212
DO  - 10.1088/1402-4896/ab7654
ER  - 
@article{
author = "Jia, Li-Ping and Tekić, Jasmina",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8911",
abstract = "A chain of harmonically interacting particles confined between two sinusoidal substrate potentials has been analysed. When the top substrate is driven through an attached spring with a constant velocity, the influence of the system parameters on the kinetic friction force was examined in the system with commensurate substrates. It was shown that the friction reached its maximum value when the equilibrium distance of the intermediate particles was an integer multiple of the space period of the upper and lower substrate potentials, which led to the maximum energy loss. This loss can be reduced by the increase of interparticle interaction of the middle layer.",
journal = "Physica Scripta",
title = "Kinetic friction force in a three-layer model with commensurate substrates",
volume = "95",
number = "5",
pages = "055212",
doi = "10.1088/1402-4896/ab7654"
}
Jia, L.,& Tekić, J. (2020). Kinetic friction force in a three-layer model with commensurate substrates.
Physica Scripta, 95(5), 055212.
https://doi.org/10.1088/1402-4896/ab7654
Jia L, Tekić J. Kinetic friction force in a three-layer model with commensurate substrates. Physica Scripta. 2020;95(5):055212
Jia Li-Ping, Tekić Jasmina, "Kinetic friction force in a three-layer model with commensurate substrates" Physica Scripta, 95, no. 5 (2020):055212,
https://doi.org/10.1088/1402-4896/ab7654 .
1
1
1

Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere

Janković, Bojan Ž.; Manić, Nebojša G.; Dodevski, Vladimir; Radojević, Miloš; Stojiljković, Dragoslava

(2020)

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Manić, Nebojša G.
AU  - Dodevski, Vladimir
AU  - Radojević, Miloš
AU  - Stojiljković, Dragoslava
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8906
AB  - The combustion reactivity of plane tree seeds biomass feedstock was studied using the thermogravimetry. The effects of atmosphere (O2/Ar) and different oxygen concentrations (O2/Ar = 20:80% and O2/Ar = 50:50%) on the combustion characteristics were investigated. When combustion atmosphere changes from O2/Ar = 50:50% to O2/Ar = 20:80% (reducing oxygen concentrations), the burnout temperature increases by 29.50 °C for tested biomass. Obtained results demonstrate the ease of ignition of investigated lignocellulosic material for O2/Ar = 50:50% ratio compared with O2/Ar = 20:80% ratio, and the actual trend is maintained under the condition when the heating rate increases. The reducing of oxygen concentration strongly influenced the amount of final residue products, particularly at higher heating rates (beyond 10 °C min−1). Kinetic analysis applied to investigated process shows strongly dependencies of both the apparent activation energy (E) and pre-exponential factor (logA) with conversion (α), especially in devolatilization and combustion of volatiles reaction stages. Large variation in E is attributed to existence of multiple parallel reactions. In order to solve this problem, the deconvolution technique that uses Fraser–Suzuki function was applied. It was shown that Fraser–Suzuki function fits successfully kinetic rate curves of entire combustion process, assuming the best selected nth-order reaction model.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere
VL  - 142
IS  - 2
SP  - 953
EP  - 976
DO  - 10.1007/s10973-019-09154-z
ER  - 
@article{
author = "Janković, Bojan Ž. and Manić, Nebojša G. and Dodevski, Vladimir and Radojević, Miloš and Stojiljković, Dragoslava",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8906",
abstract = "The combustion reactivity of plane tree seeds biomass feedstock was studied using the thermogravimetry. The effects of atmosphere (O2/Ar) and different oxygen concentrations (O2/Ar = 20:80% and O2/Ar = 50:50%) on the combustion characteristics were investigated. When combustion atmosphere changes from O2/Ar = 50:50% to O2/Ar = 20:80% (reducing oxygen concentrations), the burnout temperature increases by 29.50 °C for tested biomass. Obtained results demonstrate the ease of ignition of investigated lignocellulosic material for O2/Ar = 50:50% ratio compared with O2/Ar = 20:80% ratio, and the actual trend is maintained under the condition when the heating rate increases. The reducing of oxygen concentration strongly influenced the amount of final residue products, particularly at higher heating rates (beyond 10 °C min−1). Kinetic analysis applied to investigated process shows strongly dependencies of both the apparent activation energy (E) and pre-exponential factor (logA) with conversion (α), especially in devolatilization and combustion of volatiles reaction stages. Large variation in E is attributed to existence of multiple parallel reactions. In order to solve this problem, the deconvolution technique that uses Fraser–Suzuki function was applied. It was shown that Fraser–Suzuki function fits successfully kinetic rate curves of entire combustion process, assuming the best selected nth-order reaction model.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere",
volume = "142",
number = "2",
pages = "953-976",
doi = "10.1007/s10973-019-09154-z"
}
Janković, B. Ž., Manić, N. G., Dodevski, V., Radojević, M.,& Stojiljković, D. (2020). Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere.
Journal of Thermal Analysis and Calorimetry, 142(2), 953-976.
https://doi.org/10.1007/s10973-019-09154-z
Janković BŽ, Manić NG, Dodevski V, Radojević M, Stojiljković D. Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere. Journal of Thermal Analysis and Calorimetry. 2020;142(2):953-976
Janković Bojan Ž., Manić Nebojša G., Dodevski Vladimir, Radojević Miloš, Stojiljković Dragoslava, "Kinetic study of oxy-combustion of plane tree (Platanus orientalis) seeds (PTS) in O2/Ar atmosphere" Journal of Thermal Analysis and Calorimetry, 142, no. 2 (2020):953-976,
https://doi.org/10.1007/s10973-019-09154-z .

Deep learning-based classification of high intensity light patterns in photorefractive crystals

Ivanović, Marija D.; Mančić, Ana; Hermann-Avigliano, Carla; Hadžievski, Ljupčo; Maluckov, Aleksandra

(2020)

TY  - JOUR
AU  - Ivanović, Marija D.
AU  - Mančić, Ana
AU  - Hermann-Avigliano, Carla
AU  - Hadžievski, Ljupčo
AU  - Maluckov, Aleksandra
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8837
AB  - In this paper, we establish a new scheme for identification and classification of high intensity events generated by the propagation of light through a photorefractive SBN crystal. Among these events, which are the inevitable consequence of the development of modulation instability, are speckling and soliton-like patterns. The usual classifiers, developed on statistical measures, such as the significant intensity, often provide only a partial characterization of these events. Here, we try to overcome this deficiency by implementing the convolution neural network method to relate experimental data of light intensity distribution and corresponding numerical outputs with different high intensity regimes. The train and test sets are formed of experimentally obtained intensity profiles at the crystal output facet and corresponding numerical profiles. The accuracy of detection of speckles reaches maximum value of 100%, while the accuracy of solitons and caustic detection is above 97%. These performances are promising for the creation of neural network based routines for prediction of extreme events in wave media. © 2020 IOP Publishing Ltd.
T2  - Journal of Optics
T1  - Deep learning-based classification of high intensity light patterns in photorefractive crystals
VL  - 22
IS  - 3
SP  - 035504
DO  - 10.1088/2040-8986/ab70f0
ER  - 
@article{
author = "Ivanović, Marija D. and Mančić, Ana and Hermann-Avigliano, Carla and Hadžievski, Ljupčo and Maluckov, Aleksandra",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8837",
abstract = "In this paper, we establish a new scheme for identification and classification of high intensity events generated by the propagation of light through a photorefractive SBN crystal. Among these events, which are the inevitable consequence of the development of modulation instability, are speckling and soliton-like patterns. The usual classifiers, developed on statistical measures, such as the significant intensity, often provide only a partial characterization of these events. Here, we try to overcome this deficiency by implementing the convolution neural network method to relate experimental data of light intensity distribution and corresponding numerical outputs with different high intensity regimes. The train and test sets are formed of experimentally obtained intensity profiles at the crystal output facet and corresponding numerical profiles. The accuracy of detection of speckles reaches maximum value of 100%, while the accuracy of solitons and caustic detection is above 97%. These performances are promising for the creation of neural network based routines for prediction of extreme events in wave media. © 2020 IOP Publishing Ltd.",
journal = "Journal of Optics",
title = "Deep learning-based classification of high intensity light patterns in photorefractive crystals",
volume = "22",
number = "3",
pages = "035504",
doi = "10.1088/2040-8986/ab70f0"
}
Ivanović, M. D., Mančić, A., Hermann-Avigliano, C., Hadžievski, L.,& Maluckov, A. (2020). Deep learning-based classification of high intensity light patterns in photorefractive crystals.
Journal of Optics, 22(3), 035504.
https://doi.org/10.1088/2040-8986/ab70f0
Ivanović MD, Mančić A, Hermann-Avigliano C, Hadžievski L, Maluckov A. Deep learning-based classification of high intensity light patterns in photorefractive crystals. Journal of Optics. 2020;22(3):035504
Ivanović Marija D., Mančić Ana, Hermann-Avigliano Carla, Hadžievski Ljupčo, Maluckov Aleksandra, "Deep learning-based classification of high intensity light patterns in photorefractive crystals" Journal of Optics, 22, no. 3 (2020):035504,
https://doi.org/10.1088/2040-8986/ab70f0 .
2

Ac-driven annular Josephson junctions: The missing Shapiro steps

Rahmonov, Ilhom R.; Tekić, Jasmina; Mali, Petar; Irie, Akinobu; Shukrinov, Yury M.

(2020)

TY  - JOUR
AU  - Rahmonov, Ilhom R.
AU  - Tekić, Jasmina
AU  - Mali, Petar
AU  - Irie, Akinobu
AU  - Shukrinov, Yury M.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8809
AB  - Examination of an annular system of underdamped Josephson junctions in the presence of external radiation showed that the ability of the system to lock with some external radiation was determined not only by the number but also by the type of rotating excitations (fluxons or antifluxons). Shapiro steps can be observed in the current-voltage characteristic only in the system with trapped fluxons or in the system with fluxon-antifluxon pairs. If the trapped fluxons circulate simultaneously with fluxon-antifluxon pairs, there are no Shapiro steps regardless of the amplitude or frequency of the applied external radiation. © 2020 American Physical Society.
T2  - Physical Review B
T1  - Ac-driven annular Josephson junctions: The missing Shapiro steps
VL  - 101
IS  - 2
SP  - 024512
DO  - 10.1103/PhysRevB.101.024512
ER  - 
@article{
author = "Rahmonov, Ilhom R. and Tekić, Jasmina and Mali, Petar and Irie, Akinobu and Shukrinov, Yury M.",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8809",
abstract = "Examination of an annular system of underdamped Josephson junctions in the presence of external radiation showed that the ability of the system to lock with some external radiation was determined not only by the number but also by the type of rotating excitations (fluxons or antifluxons). Shapiro steps can be observed in the current-voltage characteristic only in the system with trapped fluxons or in the system with fluxon-antifluxon pairs. If the trapped fluxons circulate simultaneously with fluxon-antifluxon pairs, there are no Shapiro steps regardless of the amplitude or frequency of the applied external radiation. © 2020 American Physical Society.",
journal = "Physical Review B",
title = "Ac-driven annular Josephson junctions: The missing Shapiro steps",
volume = "101",
number = "2",
pages = "024512",
doi = "10.1103/PhysRevB.101.024512"
}
Rahmonov, I. R., Tekić, J., Mali, P., Irie, A.,& Shukrinov, Y. M. (2020). Ac-driven annular Josephson junctions: The missing Shapiro steps.
Physical Review B, 101(2), 024512.
https://doi.org/10.1103/PhysRevB.101.024512
Rahmonov IR, Tekić J, Mali P, Irie A, Shukrinov YM. Ac-driven annular Josephson junctions: The missing Shapiro steps. Physical Review B. 2020;101(2):024512
Rahmonov Ilhom R., Tekić Jasmina, Mali Petar, Irie Akinobu, Shukrinov Yury M., "Ac-driven annular Josephson junctions: The missing Shapiro steps" Physical Review B, 101, no. 2 (2020):024512,
https://doi.org/10.1103/PhysRevB.101.024512 .
1
7
5
8

Photon diagnostics at the FLASH THz beamline

Pan, Rui; Zapolnova, Ekaterina; Golz, Torsten; Krmpot, Aleksandar J.; Rabasović, Mihailo D.; Petrović, Jovana S.; Asgekar, Vivek; Faatz, Bart; Tavella, Franz; Perucchi, Andrea; Kovalev, Sergey; Green, Bertram Windisch; Geloni, Gianluca; Tanikawa, Takanori; Yurkov, Mikhail; Schneidmiller, Evgeny; Gensch, Michael; Stojanović, Nikola

(2019)

TY  - JOUR
AU  - Pan, Rui
AU  - Zapolnova, Ekaterina
AU  - Golz, Torsten
AU  - Krmpot, Aleksandar J.
AU  - Rabasović, Mihailo D.
AU  - Petrović, Jovana S.
AU  - Asgekar, Vivek
AU  - Faatz, Bart
AU  - Tavella, Franz
AU  - Perucchi, Andrea
AU  - Kovalev, Sergey
AU  - Green, Bertram Windisch
AU  - Geloni, Gianluca
AU  - Tanikawa, Takanori
AU  - Yurkov, Mikhail
AU  - Schneidmiller, Evgeny
AU  - Gensch, Michael
AU  - Stojanović, Nikola
PY  - 2019
UR  - http://scripts.iucr.org/cgi-bin/paper?S1600577519003412
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8197
AB  - The THz beamline at FLASH, DESY, provides both tunable (1–300 THz) narrow-bandwidth (∼10%) and broad-bandwidth intense (up to 150 uJ) THz pulses delivered in 1 MHz bursts and naturally synchronized with free-electron laser X-ray pulses. Combination of these pulses, along with the auxiliary NIR and VIS ultrashort lasers, supports a plethora of dynamic investigations in physics, material science and biology. The unique features of the FLASH THz pulses and the accelerator source, however, bring along a set of challenges in the diagnostics of their key parameters: pulse energy, spectral, temporal and spatial profiles. Here, these challenges are discussed and the pulse diagnostic tools developed at FLASH are presented. In particular, a radiometric power measurement is presented that enables the derivation of the average pulse energy within a pulse burst across the spectral range, jitter-corrected electro-optical sampling for the full spectro-temporal pulse characterization, spatial beam profiling along the beam transport line and at the sample, and a lamellar grating based Fourier transform infrared spectrometer for the on-line assessment of the average THz pulse spectra. Corresponding measurement results provide a comprehensive insight into the THz beamline capabilities.
T2  - Journal of Synchrotron Radiation
T1  - Photon diagnostics at the FLASH THz beamline
VL  - 26
IS  - 3
SP  - 700
EP  - 707
DO  - 10.1107/S1600577519003412
ER  - 
@article{
author = "Pan, Rui and Zapolnova, Ekaterina and Golz, Torsten and Krmpot, Aleksandar J. and Rabasović, Mihailo D. and Petrović, Jovana S. and Asgekar, Vivek and Faatz, Bart and Tavella, Franz and Perucchi, Andrea and Kovalev, Sergey and Green, Bertram Windisch and Geloni, Gianluca and Tanikawa, Takanori and Yurkov, Mikhail and Schneidmiller, Evgeny and Gensch, Michael and Stojanović, Nikola",
year = "2019",
url = "http://scripts.iucr.org/cgi-bin/paper?S1600577519003412, http://vinar.vin.bg.ac.rs/handle/123456789/8197",
abstract = "The THz beamline at FLASH, DESY, provides both tunable (1–300 THz) narrow-bandwidth (∼10%) and broad-bandwidth intense (up to 150 uJ) THz pulses delivered in 1 MHz bursts and naturally synchronized with free-electron laser X-ray pulses. Combination of these pulses, along with the auxiliary NIR and VIS ultrashort lasers, supports a plethora of dynamic investigations in physics, material science and biology. The unique features of the FLASH THz pulses and the accelerator source, however, bring along a set of challenges in the diagnostics of their key parameters: pulse energy, spectral, temporal and spatial profiles. Here, these challenges are discussed and the pulse diagnostic tools developed at FLASH are presented. In particular, a radiometric power measurement is presented that enables the derivation of the average pulse energy within a pulse burst across the spectral range, jitter-corrected electro-optical sampling for the full spectro-temporal pulse characterization, spatial beam profiling along the beam transport line and at the sample, and a lamellar grating based Fourier transform infrared spectrometer for the on-line assessment of the average THz pulse spectra. Corresponding measurement results provide a comprehensive insight into the THz beamline capabilities.",
journal = "Journal of Synchrotron Radiation",
title = "Photon diagnostics at the FLASH THz beamline",
volume = "26",
number = "3",
pages = "700-707",
doi = "10.1107/S1600577519003412"
}
Pan, R., Zapolnova, E., Golz, T., Krmpot, A. J., Rabasović, M. D., Petrović, J. S., Asgekar, V., Faatz, B., Tavella, F., Perucchi, A., Kovalev, S., Green, B. W., Geloni, G., Tanikawa, T., Yurkov, M., Schneidmiller, E., Gensch, M.,& Stojanović, N. (2019). Photon diagnostics at the FLASH THz beamline.
Journal of Synchrotron Radiation, 26(3), 700-707.
https://doi.org/10.1107/S1600577519003412
Pan R, Zapolnova E, Golz T, Krmpot AJ, Rabasović MD, Petrović JS, Asgekar V, Faatz B, Tavella F, Perucchi A, Kovalev S, Green BW, Geloni G, Tanikawa T, Yurkov M, Schneidmiller E, Gensch M, Stojanović N. Photon diagnostics at the FLASH THz beamline. Journal of Synchrotron Radiation. 2019;26(3):700-707
Pan Rui, Zapolnova Ekaterina, Golz Torsten, Krmpot Aleksandar J., Rabasović Mihailo D., Petrović Jovana S., Asgekar Vivek, Faatz Bart, Tavella Franz, Perucchi Andrea, Kovalev Sergey, Green Bertram Windisch, Geloni Gianluca, Tanikawa Takanori, Yurkov Mikhail, Schneidmiller Evgeny, Gensch Michael, Stojanović Nikola, "Photon diagnostics at the FLASH THz beamline" Journal of Synchrotron Radiation, 26, no. 3 (2019):700-707,
https://doi.org/10.1107/S1600577519003412 .
1
8
7
9

Durability of the refractive index change induced by a single femtosecond laser pulse in glass

Petrović, Jovana S.

(2019)

TY  - JOUR
AU  - Petrović, Jovana S.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S2590147819300014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8045
AB  - Ultrafast-laser inscribed optical memories have been considered as a high-density low-energy-consumption alternative to the magnetization-based memories. The optical memories are based on laser-induced material modifications resulting in the refractive index change. The long-term stability of such modifications has been indicated by subjecting them to the accelerated aging by annealing at elevated temperatures. Here, the first direct evidence is provided of the durability of the type II refractive index change in BK7 glass. The investigation was performed for over 27 months at room temperature. The results show the existence of the laser pulse intensity threshold above which the magnitude of the index change does not deteriorate with time and, hence, is suitable for optical memory, photonic crystal and fibre-grating writing. © 2019
T2  - Optical Materials: X
T1  - Durability of the refractive index change induced by a single femtosecond laser pulse in glass
VL  - 1
SP  - 100004
DO  - 10.1016/j.omx.2019.100004
ER  - 
@article{
author = "Petrović, Jovana S.",
year = "2019",
url = "https://linkinghub.elsevier.com/retrieve/pii/S2590147819300014, http://vinar.vin.bg.ac.rs/handle/123456789/8045",
abstract = "Ultrafast-laser inscribed optical memories have been considered as a high-density low-energy-consumption alternative to the magnetization-based memories. The optical memories are based on laser-induced material modifications resulting in the refractive index change. The long-term stability of such modifications has been indicated by subjecting them to the accelerated aging by annealing at elevated temperatures. Here, the first direct evidence is provided of the durability of the type II refractive index change in BK7 glass. The investigation was performed for over 27 months at room temperature. The results show the existence of the laser pulse intensity threshold above which the magnitude of the index change does not deteriorate with time and, hence, is suitable for optical memory, photonic crystal and fibre-grating writing. © 2019",
journal = "Optical Materials: X",
title = "Durability of the refractive index change induced by a single femtosecond laser pulse in glass",
volume = "1",
pages = "100004",
doi = "10.1016/j.omx.2019.100004"
}
Petrović, J. S. (2019). Durability of the refractive index change induced by a single femtosecond laser pulse in glass.
Optical Materials: X, 1, 100004.
https://doi.org/10.1016/j.omx.2019.100004
Petrović JS. Durability of the refractive index change induced by a single femtosecond laser pulse in glass. Optical Materials: X. 2019;1:100004
Petrović Jovana S., "Durability of the refractive index change induced by a single femtosecond laser pulse in glass" Optical Materials: X, 1 (2019):100004,
https://doi.org/10.1016/j.omx.2019.100004 .
1
1

Spatial rogue waves in photorefractive SBN crystals

Hermann-Avigliano, Carla; Salinas, I A; Rivas, D. A.; Real, Bastian; Mančić, Ana; Mejía-Cortés, Cristian; Maluckov, Aleksandra; Poblete, Rodrigo Andres Vicencio

(2019)

TY  - JOUR
AU  - Hermann-Avigliano, Carla
AU  - Salinas, I A
AU  - Rivas, D. A.
AU  - Real, Bastian
AU  - Mančić, Ana
AU  - Mejía-Cortés, Cristian
AU  - Maluckov, Aleksandra
AU  - Poblete, Rodrigo Andres Vicencio
PY  - 2019
UR  - https://www.osapublishing.org/abstract.cfm?URI=ol-44-11-2807
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8223
AB  - We report on the excitation of large-amplitude waves, with a probability of around 1% of total peaks, on a photorefractive SBN crystal by using a simple experimental setup at room temperature. We excite the system using a narrow Gaussian beam and observe different dynamical regimes tailored by the value and time rate of an applied voltage. We identify two main dynamical regimes: a caustic one for energy spreading and a speckling one for peak emergence. Our observations are well described by a two-dimensional Schrödinger model with saturable local nonlinearity. © 2019 Optical Society of America.
T2  - Optics Letters
T1  - Spatial rogue waves in photorefractive SBN crystals
VL  - 44
IS  - 11
SP  - 2807
DO  - 10.1364/OL.44.002807
ER  - 
@article{
author = "Hermann-Avigliano, Carla and Salinas, I A and Rivas, D. A. and Real, Bastian and Mančić, Ana and Mejía-Cortés, Cristian and Maluckov, Aleksandra and Poblete, Rodrigo Andres Vicencio",
year = "2019",
url = "https://www.osapublishing.org/abstract.cfm?URI=ol-44-11-2807, http://vinar.vin.bg.ac.rs/handle/123456789/8223",
abstract = "We report on the excitation of large-amplitude waves, with a probability of around 1% of total peaks, on a photorefractive SBN crystal by using a simple experimental setup at room temperature. We excite the system using a narrow Gaussian beam and observe different dynamical regimes tailored by the value and time rate of an applied voltage. We identify two main dynamical regimes: a caustic one for energy spreading and a speckling one for peak emergence. Our observations are well described by a two-dimensional Schrödinger model with saturable local nonlinearity. © 2019 Optical Society of America.",
journal = "Optics Letters",
title = "Spatial rogue waves in photorefractive SBN crystals",
volume = "44",
number = "11",
pages = "2807",
doi = "10.1364/OL.44.002807"
}
Hermann-Avigliano, C., Salinas, I. A., Rivas, D. A., Real, B., Mančić, A., Mejía-Cortés, C., Maluckov, A.,& Poblete, R. A. V. (2019). Spatial rogue waves in photorefractive SBN crystals.
Optics Letters, 44(11), 2807.
https://doi.org/10.1364/OL.44.002807
Hermann-Avigliano C, Salinas IA, Rivas DA, Real B, Mančić A, Mejía-Cortés C, Maluckov A, Poblete RAV. Spatial rogue waves in photorefractive SBN crystals. Optics Letters. 2019;44(11):2807
Hermann-Avigliano Carla, Salinas I A, Rivas D. A., Real Bastian, Mančić Ana, Mejía-Cortés Cristian, Maluckov Aleksandra, Poblete Rodrigo Andres Vicencio, "Spatial rogue waves in photorefractive SBN crystals" Optics Letters, 44, no. 11 (2019):2807,
https://doi.org/10.1364/OL.44.002807 .
3
4
5
5

Signal Quality in Reconstructed 12-Lead Ambulatory ECGs Recorded Using 3-Lead Device

Ivanović, Marija D.; Miletić, Marjan; Subotić, Ida; Boljević, Darko

(IEEE, 2019)

TY  - CONF
AU  - Ivanović, Marija D.
AU  - Miletić, Marjan
AU  - Subotić, Ida
AU  - Boljević, Darko
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8804
AB  - Acute myocardial infraction (AMI) is a leading cause of death in the developed countries. Survival of patients having acute coronary syndrome (ACS) dramatically depends on treatment delay. Hence, a technology that would enable ECG recording immediately after ACS symptom occurrence may significantly decrease AMI mortality. In this study we investigate the signal quality of reconstructed 12-lead ECGs by using 3-lead handheld device with dry electrode in realistic ambulatory conditions. For each subject enrolled in the study an individual transformation matrix was calculated during the calibration procedure, and used for 12-lead reconstruction whenever that subject sends a recording from a handheld device. To evaluate fidelity of 12-lead reconstructions, 3 performance metrics were defined. The results show that the reconstruction error is largest on QRS complex and smallest on ST segment for all 3 metrics. This indicates that the reconstruction of the ST segment, which carries the most important information for ischemia detection, is reconstructed with the highest quality. © 2019 IEEE.
PB  - IEEE
C3  - Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (41; 2019; Berlin)
T1  - Signal Quality in Reconstructed 12-Lead Ambulatory ECGs Recorded Using 3-Lead Device
SP  - 5481
EP  - 5487
DO  - 10.1109/EMBC.2019.8857251
ER  - 
@conference{
author = "Ivanović, Marija D. and Miletić, Marjan and Subotić, Ida and Boljević, Darko",
year = "2019",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8804",
abstract = "Acute myocardial infraction (AMI) is a leading cause of death in the developed countries. Survival of patients having acute coronary syndrome (ACS) dramatically depends on treatment delay. Hence, a technology that would enable ECG recording immediately after ACS symptom occurrence may significantly decrease AMI mortality. In this study we investigate the signal quality of reconstructed 12-lead ECGs by using 3-lead handheld device with dry electrode in realistic ambulatory conditions. For each subject enrolled in the study an individual transformation matrix was calculated during the calibration procedure, and used for 12-lead reconstruction whenever that subject sends a recording from a handheld device. To evaluate fidelity of 12-lead reconstructions, 3 performance metrics were defined. The results show that the reconstruction error is largest on QRS complex and smallest on ST segment for all 3 metrics. This indicates that the reconstruction of the ST segment, which carries the most important information for ischemia detection, is reconstructed with the highest quality. © 2019 IEEE.",
publisher = "IEEE",
journal = "Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (41; 2019; Berlin)",
title = "Signal Quality in Reconstructed 12-Lead Ambulatory ECGs Recorded Using 3-Lead Device",
pages = "5481-5487",
doi = "10.1109/EMBC.2019.8857251"
}
Ivanović, M. D., Miletić, M., Subotić, I.,& Boljević, D. (2019). Signal Quality in Reconstructed 12-Lead Ambulatory ECGs Recorded Using 3-Lead Device.
Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (41; 2019; Berlin)
IEEE., 5481-5487.
https://doi.org/10.1109/EMBC.2019.8857251
Ivanović MD, Miletić M, Subotić I, Boljević D. Signal Quality in Reconstructed 12-Lead Ambulatory ECGs Recorded Using 3-Lead Device. Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (41; 2019; Berlin). 2019;:5481-5487
Ivanović Marija D., Miletić Marjan, Subotić Ida, Boljević Darko, "Signal Quality in Reconstructed 12-Lead Ambulatory ECGs Recorded Using 3-Lead Device" Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (41; 2019; Berlin) (2019):5481-5487,
https://doi.org/10.1109/EMBC.2019.8857251 .

Matter wave soliton solutions for driven Gross–Pitaevskii equation with distributed coefficients

Pal, Ritu; Loomba, Shally; Kumar, Choragudi Nagaraja; Milović, Daniela M.; Maluckov, Aleksandra

(2019)

TY  - JOUR
AU  - Pal, Ritu
AU  - Loomba, Shally
AU  - Kumar, Choragudi Nagaraja
AU  - Milović, Daniela M.
AU  - Maluckov, Aleksandra
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0003491619300028
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8036
AB  - We have obtained the matter wave soliton solution for the driven nonautonomous GP equation with quadratic–cubic nonlinearities. We have revealed their interesting dynamical features for the experimentally realizable form of nonlinear interactions. Additionally, we have described that by suitably choosing some system parameters, we can control their characteristics such as amplitude and width etc. We have found that our results/solutions are stable and can be applied for future applications.
T2  - Annals of Physics
T1  - Matter wave soliton solutions for driven Gross–Pitaevskii equation with distributed coefficients
VL  - 401
SP  - 116
EP  - 129
DO  - 10.1016/j.aop.2019.01.002
ER  - 
@article{
author = "Pal, Ritu and Loomba, Shally and Kumar, Choragudi Nagaraja and Milović, Daniela M. and Maluckov, Aleksandra",
year = "2019",
url = "https://linkinghub.elsevier.com/retrieve/pii/S0003491619300028, http://vinar.vin.bg.ac.rs/handle/123456789/8036",
abstract = "We have obtained the matter wave soliton solution for the driven nonautonomous GP equation with quadratic–cubic nonlinearities. We have revealed their interesting dynamical features for the experimentally realizable form of nonlinear interactions. Additionally, we have described that by suitably choosing some system parameters, we can control their characteristics such as amplitude and width etc. We have found that our results/solutions are stable and can be applied for future applications.",
journal = "Annals of Physics",
title = "Matter wave soliton solutions for driven Gross–Pitaevskii equation with distributed coefficients",
volume = "401",
pages = "116-129",
doi = "10.1016/j.aop.2019.01.002"
}
Pal, R., Loomba, S., Kumar, C. N., Milović, D. M.,& Maluckov, A. (2019). Matter wave soliton solutions for driven Gross–Pitaevskii equation with distributed coefficients.
Annals of Physics, 401, 116-129.
https://doi.org/10.1016/j.aop.2019.01.002
Pal R, Loomba S, Kumar CN, Milović DM, Maluckov A. Matter wave soliton solutions for driven Gross–Pitaevskii equation with distributed coefficients. Annals of Physics. 2019;401:116-129
Pal Ritu, Loomba Shally, Kumar Choragudi Nagaraja, Milović Daniela M., Maluckov Aleksandra, "Matter wave soliton solutions for driven Gross–Pitaevskii equation with distributed coefficients" Annals of Physics, 401 (2019):116-129,
https://doi.org/10.1016/j.aop.2019.01.002 .
1
2
2

Inertial effects in the dc+ac driven underdamped Frenkel-Kontorova model: Subharmonic steps, chaos, and hysteresis

Tekić, Jasmina; Botha, Andre E.; Mali, Petar; Shukrinov, Yury M.

(2019)

TY  - JOUR
AU  - Tekić, Jasmina
AU  - Botha, Andre E.
AU  - Mali, Petar
AU  - Shukrinov, Yury M.
PY  - 2019
UR  - https://link.aps.org/doi/10.1103/PhysRevE.99.022206
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8058
AB  - The effects of inertial terms on the dynamics of the dc+ac driven Frenkel-Kontorova model were examined. As the mass of particles was varied, the response of the system to the driving forces and appearance of the Shapiro steps were analyzed in detail. Unlike in the overdamped case, the increase of mass led to the appearance of the whole series of subharmonic steps in the staircase of the average velocity as a function of average driving force in any commensurate structure. At certain values of parameters, the subharmonic steps became separated by chaotic windows while the whole structure retained scaling similar to the original staircase. The mass of the particles also determined their sensitivity to the forces governing their dynamics. Depending on their mass, they were found to exhibit three types of dynamics, from dynamical mode-locking with chaotic windows, through to a typical dc response, to essentially a free-particle response. Examination of this dynamics in both the upforce and downforce directions showed that the system may not only exhibit hysteresis, but also that large Shapiro steps may appear in the downforce direction, even in cases for which no dynamical mode-locking occurred in the upforce direction. © 2019 American Physical Society.
T2  - Physical Review E
T1  - Inertial effects in the dc+ac driven underdamped Frenkel-Kontorova model: Subharmonic steps, chaos, and hysteresis
VL  - 99
IS  - 2
SP  - 022206
DO  - 10.1103/PhysRevE.99.022206
ER  - 
@article{
author = "Tekić, Jasmina and Botha, Andre E. and Mali, Petar and Shukrinov, Yury M.",
year = "2019",
url = "https://link.aps.org/doi/10.1103/PhysRevE.99.022206, http://vinar.vin.bg.ac.rs/handle/123456789/8058",
abstract = "The effects of inertial terms on the dynamics of the dc+ac driven Frenkel-Kontorova model were examined. As the mass of particles was varied, the response of the system to the driving forces and appearance of the Shapiro steps were analyzed in detail. Unlike in the overdamped case, the increase of mass led to the appearance of the whole series of subharmonic steps in the staircase of the average velocity as a function of average driving force in any commensurate structure. At certain values of parameters, the subharmonic steps became separated by chaotic windows while the whole structure retained scaling similar to the original staircase. The mass of the particles also determined their sensitivity to the forces governing their dynamics. Depending on their mass, they were found to exhibit three types of dynamics, from dynamical mode-locking with chaotic windows, through to a typical dc response, to essentially a free-particle response. Examination of this dynamics in both the upforce and downforce directions showed that the system may not only exhibit hysteresis, but also that large Shapiro steps may appear in the downforce direction, even in cases for which no dynamical mode-locking occurred in the upforce direction. © 2019 American Physical Society.",
journal = "Physical Review E",
title = "Inertial effects in the dc+ac driven underdamped Frenkel-Kontorova model: Subharmonic steps, chaos, and hysteresis",
volume = "99",
number = "2",
pages = "022206",
doi = "10.1103/PhysRevE.99.022206"
}
Tekić, J., Botha, A. E., Mali, P.,& Shukrinov, Y. M. (2019). Inertial effects in the dc+ac driven underdamped Frenkel-Kontorova model: Subharmonic steps, chaos, and hysteresis.
Physical Review E, 99(2), 022206.
https://doi.org/10.1103/PhysRevE.99.022206
Tekić J, Botha AE, Mali P, Shukrinov YM. Inertial effects in the dc+ac driven underdamped Frenkel-Kontorova model: Subharmonic steps, chaos, and hysteresis. Physical Review E. 2019;99(2):022206
Tekić Jasmina, Botha Andre E., Mali Petar, Shukrinov Yury M., "Inertial effects in the dc+ac driven underdamped Frenkel-Kontorova model: Subharmonic steps, chaos, and hysteresis" Physical Review E, 99, no. 2 (2019):022206,
https://doi.org/10.1103/PhysRevE.99.022206 .
1
12
9
12

Self-induced transparency in a flux-qubit chain

Ivić, Zoran; Lazarides, Nikos; Tsironis, Giorgos P.

(2019)

TY  - JOUR
AU  - Ivić, Zoran
AU  - Lazarides, Nikos
AU  - Tsironis, Giorgos P.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S2590054419300028
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8072
AB  - We introduce a quantum superconducting metamaterial design constituted of flux qubits that operate as artificial atoms and analyze the dynamics of an injected electromagnetic pulse in the system. Qubit-photon interaction affects dramatically the nonlinear photon pulse propagation. We find analytically that the well known atomic phenomenon of self induced transparency may occur in this metamaterial as well and may lead to significant control over the optical pulse propagating properties. Specifically, the pulse may be slowed down substantially or even be stopped. These pulse properties depend crucially on the inhomogeneous broadening of the levels of the artificial atoms. © 2019
T2  - Chaos, Solitons & Fractals: X
T1  - Self-induced transparency in a flux-qubit chain
VL  - 1
SP  - 100003
DO  - 10.1016/j.csfx.2019.100003
ER  - 
@article{
author = "Ivić, Zoran and Lazarides, Nikos and Tsironis, Giorgos P.",
year = "2019",
url = "https://linkinghub.elsevier.com/retrieve/pii/S2590054419300028, http://vinar.vin.bg.ac.rs/handle/123456789/8072",
abstract = "We introduce a quantum superconducting metamaterial design constituted of flux qubits that operate as artificial atoms and analyze the dynamics of an injected electromagnetic pulse in the system. Qubit-photon interaction affects dramatically the nonlinear photon pulse propagation. We find analytically that the well known atomic phenomenon of self induced transparency may occur in this metamaterial as well and may lead to significant control over the optical pulse propagating properties. Specifically, the pulse may be slowed down substantially or even be stopped. These pulse properties depend crucially on the inhomogeneous broadening of the levels of the artificial atoms. © 2019",
journal = "Chaos, Solitons & Fractals: X",
title = "Self-induced transparency in a flux-qubit chain",
volume = "1",
pages = "100003",
doi = "10.1016/j.csfx.2019.100003"
}
Ivić, Z., Lazarides, N.,& Tsironis, G. P. (2019). Self-induced transparency in a flux-qubit chain.
Chaos, Solitons & Fractals: X, 1, 100003.
https://doi.org/10.1016/j.csfx.2019.100003
Ivić Z, Lazarides N, Tsironis GP. Self-induced transparency in a flux-qubit chain. Chaos, Solitons & Fractals: X. 2019;1:100003
Ivić Zoran, Lazarides Nikos, Tsironis Giorgos P., "Self-induced transparency in a flux-qubit chain" Chaos, Solitons & Fractals: X, 1 (2019):100003,
https://doi.org/10.1016/j.csfx.2019.100003 .
3
3

Dynamics of the overdamped three-layer model with the incommensurate structure

Yang, Y.; Tekić, Jasmina; Hong, X. R.; Jia, L. P.; Wei, P.; Duan, W. S.

(2019)

TY  - JOUR
AU  - Yang, Y.
AU  - Tekić, Jasmina
AU  - Hong, X. R.
AU  - Jia, L. P.
AU  - Wei, P.
AU  - Duan, W. S.
PY  - 2019
UR  - https://www.tandfonline.com/doi/full/10.1080/17455030.2018.1428380
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8216
AB  - An overdamped three-layer model with incommensurate structure consisting of two harmonic chains which both move over the substrate potential is studied in the presence of an external (Formula presented.) driving force. The force is applied only on the upper harmonic chain, and dynamics of the middle layer is examined. The results show that the dynamical mode-locking appears not only in the upper layer but also in the middle one. The behavior of the middle layer is strongly determined by the amplitude and frequency of the ac force, and the phase diagram which presents pinned, dynamical mode-locking and sliding regimes as a function of system parameters are given. Contrary to the standard case, critical depinning force and steps exhibit anomalous behavior. Particles trajectories have been analyzed which showed very different motion of particles from the one which usually appears in systems under (Formula presented.) forces.
T2  - Waves in Random and Complex Media
T1  - Dynamics of the overdamped three-layer model with the incommensurate structure
VL  - 29
IS  - 2
SP  - 236
EP  - 246
DO  - 10.1080/17455030.2018.1428380
ER  - 
@article{
author = "Yang, Y. and Tekić, Jasmina and Hong, X. R. and Jia, L. P. and Wei, P. and Duan, W. S.",
year = "2019",
url = "https://www.tandfonline.com/doi/full/10.1080/17455030.2018.1428380, http://vinar.vin.bg.ac.rs/handle/123456789/8216",
abstract = "An overdamped three-layer model with incommensurate structure consisting of two harmonic chains which both move over the substrate potential is studied in the presence of an external (Formula presented.) driving force. The force is applied only on the upper harmonic chain, and dynamics of the middle layer is examined. The results show that the dynamical mode-locking appears not only in the upper layer but also in the middle one. The behavior of the middle layer is strongly determined by the amplitude and frequency of the ac force, and the phase diagram which presents pinned, dynamical mode-locking and sliding regimes as a function of system parameters are given. Contrary to the standard case, critical depinning force and steps exhibit anomalous behavior. Particles trajectories have been analyzed which showed very different motion of particles from the one which usually appears in systems under (Formula presented.) forces.",
journal = "Waves in Random and Complex Media",
title = "Dynamics of the overdamped three-layer model with the incommensurate structure",
volume = "29",
number = "2",
pages = "236-246",
doi = "10.1080/17455030.2018.1428380"
}
Yang, Y., Tekić, J., Hong, X. R., Jia, L. P., Wei, P.,& Duan, W. S. (2019). Dynamics of the overdamped three-layer model with the incommensurate structure.
Waves in Random and Complex Media, 29(2), 236-246.
https://doi.org/10.1080/17455030.2018.1428380
Yang Y, Tekić J, Hong XR, Jia LP, Wei P, Duan WS. Dynamics of the overdamped three-layer model with the incommensurate structure. Waves in Random and Complex Media. 2019;29(2):236-246
Yang Y., Tekić Jasmina, Hong X. R., Jia L. P., Wei P., Duan W. S., "Dynamics of the overdamped three-layer model with the incommensurate structure" Waves in Random and Complex Media, 29, no. 2 (2019):236-246,
https://doi.org/10.1080/17455030.2018.1428380 .
1
1
1

Stationary solitary and kink solutions in the helicoidal Peyrard-Bishop model of DNA molecule

Zdravković, Slobodan; Čevizović, Dalibor; Bugay, Aleksandr N.; Maluckov, Aleksandra

(2019)

TY  - JOUR
AU  - Zdravković, Slobodan
AU  - Čevizović, Dalibor
AU  - Bugay, Aleksandr N.
AU  - Maluckov, Aleksandra
PY  - 2019
UR  - http://aip.scitation.org/doi/10.1063/1.5090962
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8207
AB  - We study nonlinear dynamics of the DNA molecule relying on a helicoidal Peyrard-Bishop model. We look for traveling wave solutions and show that a continuum approximation brings about kink solitons moving along the chain. This statement is supported by the numerical solution of a relevant dynamical equation of motion. Finally, we argue that an existence of both kinks and localized modulated solitons (breathers) could be a useful tool to describe DNA-RNA transcription. © 2019 Author(s).
T2  - Chaos: An Interdisciplinary Journal of Nonlinear Science
T1  - Stationary solitary and kink solutions in the helicoidal Peyrard-Bishop model of DNA molecule
VL  - 29
IS  - 5
SP  - 053118
DO  - 10.1063/1.5090962
ER  - 
@article{
author = "Zdravković, Slobodan and Čevizović, Dalibor and Bugay, Aleksandr N. and Maluckov, Aleksandra",
year = "2019",
url = "http://aip.scitation.org/doi/10.1063/1.5090962, http://vinar.vin.bg.ac.rs/handle/123456789/8207",
abstract = "We study nonlinear dynamics of the DNA molecule relying on a helicoidal Peyrard-Bishop model. We look for traveling wave solutions and show that a continuum approximation brings about kink solitons moving along the chain. This statement is supported by the numerical solution of a relevant dynamical equation of motion. Finally, we argue that an existence of both kinks and localized modulated solitons (breathers) could be a useful tool to describe DNA-RNA transcription. © 2019 Author(s).",
journal = "Chaos: An Interdisciplinary Journal of Nonlinear Science",
title = "Stationary solitary and kink solutions in the helicoidal Peyrard-Bishop model of DNA molecule",
volume = "29",
number = "5",
pages = "053118",
doi = "10.1063/1.5090962"
}
Zdravković, S., Čevizović, D., Bugay, A. N.,& Maluckov, A. (2019). Stationary solitary and kink solutions in the helicoidal Peyrard-Bishop model of DNA molecule.
Chaos: An Interdisciplinary Journal of Nonlinear Science, 29(5), 053118.
https://doi.org/10.1063/1.5090962
Zdravković S, Čevizović D, Bugay AN, Maluckov A. Stationary solitary and kink solutions in the helicoidal Peyrard-Bishop model of DNA molecule. Chaos: An Interdisciplinary Journal of Nonlinear Science. 2019;29(5):053118
Zdravković Slobodan, Čevizović Dalibor, Bugay Aleksandr N., Maluckov Aleksandra, "Stationary solitary and kink solutions in the helicoidal Peyrard-Bishop model of DNA molecule" Chaos: An Interdisciplinary Journal of Nonlinear Science, 29, no. 5 (2019):053118,
https://doi.org/10.1063/1.5090962 .
3
4
4

Nonlinear gap modes and compactons in a lattice model for spin-orbit coupled exciton-polaritons in zigzag chains

Johansson, Magnus M.; Beličev, Petra; Gligorić, Goran; Gulevich, Dmitry R.; Skryabin, Dmitry V.

(2019)

TY  - JOUR
AU  - Johansson, Magnus M.
AU  - Beličev, Petra
AU  - Gligorić, Goran
AU  - Gulevich, Dmitry R.
AU  - Skryabin, Dmitry V.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8815
AB  - We consider a system of generalized coupled Discrete Nonlinear Schrödinger (DNLS) equations, derived as a tight-binding model from the Gross-Pitaevskii-type equations describing a zigzag chain of weakly coupled condensates of exciton-polaritons with spin-orbit (TE-TM) coupling. We focus on the simplest case when the angles for the links in the zigzag chain are ±π/4 with respect to the chain axis, and the basis (Wannier) functions are cylindrically symmetric (zero orbital angular momenta). We analyze the properties of the fundamental nonlinear localized solutions, with particular interest in the discrete gap solitons appearing due to the simultaneous presence of spin–orbit coupling and zigzag geometry, opening a gap in the linear dispersion relation. In particular, their linear stability is analyzed. We also find that the linear dispersion relation becomes exactly flat at particular parameter values, and obtain corresponding compact solutions localized on two neighboring sites, with spin-up and spin-down parts π/2 out of phase at each site. The continuation of these compact modes into exponentially decaying gap modes for generic parameter values is studied numerically, and regions of stability are found to exist in the lower or upper half of the gap, depending on the type of gap modes. © 2019 The Author(s).
T2  - Journal of Physics Communications
T1  - Nonlinear gap modes and compactons in a lattice model for spin-orbit coupled exciton-polaritons in zigzag chains
VL  - 3
IS  - 1
SP  - 015001
DO  - 10.1088/2399-6528/aaf7c9
ER  - 
@article{
author = "Johansson, Magnus M. and Beličev, Petra and Gligorić, Goran and Gulevich, Dmitry R. and Skryabin, Dmitry V.",
year = "2019",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/8815",
abstract = "We consider a system of generalized coupled Discrete Nonlinear Schrödinger (DNLS) equations, derived as a tight-binding model from the Gross-Pitaevskii-type equations describing a zigzag chain of weakly coupled condensates of exciton-polaritons with spin-orbit (TE-TM) coupling. We focus on the simplest case when the angles for the links in the zigzag chain are ±π/4 with respect to the chain axis, and the basis (Wannier) functions are cylindrically symmetric (zero orbital angular momenta). We analyze the properties of the fundamental nonlinear localized solutions, with particular interest in the discrete gap solitons appearing due to the simultaneous presence of spin–orbit coupling and zigzag geometry, opening a gap in the linear dispersion relation. In particular, their linear stability is analyzed. We also find that the linear dispersion relation becomes exactly flat at particular parameter values, and obtain corresponding compact solutions localized on two neighboring sites, with spin-up and spin-down parts π/2 out of phase at each site. The continuation of these compact modes into exponentially decaying gap modes for generic parameter values is studied numerically, and regions of stability are found to exist in the lower or upper half of the gap, depending on the type of gap modes. © 2019 The Author(s).",
journal = "Journal of Physics Communications",
title = "Nonlinear gap modes and compactons in a lattice model for spin-orbit coupled exciton-polaritons in zigzag chains",
volume = "3",
number = "1",
pages = "015001",
doi = "10.1088/2399-6528/aaf7c9"
}
Johansson, M. M., Beličev, P., Gligorić, G., Gulevich, D. R.,& Skryabin, D. V. (2019). Nonlinear gap modes and compactons in a lattice model for spin-orbit coupled exciton-polaritons in zigzag chains.
Journal of Physics Communications, 3(1), 015001.
https://doi.org/10.1088/2399-6528/aaf7c9
Johansson MM, Beličev P, Gligorić G, Gulevich DR, Skryabin DV. Nonlinear gap modes and compactons in a lattice model for spin-orbit coupled exciton-polaritons in zigzag chains. Journal of Physics Communications. 2019;3(1):015001
Johansson Magnus M., Beličev Petra, Gligorić Goran, Gulevich Dmitry R., Skryabin Dmitry V., "Nonlinear gap modes and compactons in a lattice model for spin-orbit coupled exciton-polaritons in zigzag chains" Journal of Physics Communications, 3, no. 1 (2019):015001,
https://doi.org/10.1088/2399-6528/aaf7c9 .
2

Nonlinear symmetry breaking of Aharonov-Bohm cages

Gligorić, Goran; Beličev, Petra; Leykam, Daniel; Maluckov, Aleksandra

(2019)

TY  - JOUR
AU  - Gligorić, Goran
AU  - Beličev, Petra
AU  - Leykam, Daniel
AU  - Maluckov, Aleksandra
PY  - 2019
UR  - https://link.aps.org/doi/10.1103/PhysRevA.99.013826
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8035
UR  - https://arxiv.org/pdf/1810.01618.pdf
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8039
AB  - We study the influence of mean-field cubic nonlinearity on Aharonov-Bohm caging in a diamond lattice with synthetic magnetic flux. For sufficiently weak nonlinearities, the Aharonov-Bohm caging persists as periodic nonlinear breathing dynamics. Above a critical nonlinearity, symmetry breaking induces a sharp transition in the dynamics and enables stronger wave-packet spreading. This transition is distinct from other flatband networks, where continuous spreading is induced by effective nonlinear hopping or resonances with delocalized modes and is in contrast to the quantum limit, where two-particle hopping enables arbitrarily large spreading. This nonlinear symmetry-breaking transition is readily observable in femtosecond laser-written waveguide arrays. © 2019 American Physical Society.
T2  - Physical Review A
T1  - Nonlinear symmetry breaking of Aharonov-Bohm cages
VL  - 99
IS  - 1
SP  - 013826
DO  - 10.1103/PhysRevA.99.013826
ER  - 
@article{
author = "Gligorić, Goran and Beličev, Petra and Leykam, Daniel and Maluckov, Aleksandra",
year = "2019",
url = "https://link.aps.org/doi/10.1103/PhysRevA.99.013826, http://vinar.vin.bg.ac.rs/handle/123456789/8035, https://arxiv.org/pdf/1810.01618.pdf, http://vinar.vin.bg.ac.rs/handle/123456789/8039",
abstract = "We study the influence of mean-field cubic nonlinearity on Aharonov-Bohm caging in a diamond lattice with synthetic magnetic flux. For sufficiently weak nonlinearities, the Aharonov-Bohm caging persists as periodic nonlinear breathing dynamics. Above a critical nonlinearity, symmetry breaking induces a sharp transition in the dynamics and enables stronger wave-packet spreading. This transition is distinct from other flatband networks, where continuous spreading is induced by effective nonlinear hopping or resonances with delocalized modes and is in contrast to the quantum limit, where two-particle hopping enables arbitrarily large spreading. This nonlinear symmetry-breaking transition is readily observable in femtosecond laser-written waveguide arrays. © 2019 American Physical Society.",
journal = "Physical Review A",
title = "Nonlinear symmetry breaking of Aharonov-Bohm cages",
volume = "99",
number = "1",
pages = "013826",
doi = "10.1103/PhysRevA.99.013826"
}
Gligorić, G., Beličev, P., Leykam, D.,& Maluckov, A. (2019). Nonlinear symmetry breaking of Aharonov-Bohm cages.
Physical Review A, 99(1), 013826.
https://doi.org/10.1103/PhysRevA.99.013826
Gligorić G, Beličev P, Leykam D, Maluckov A. Nonlinear symmetry breaking of Aharonov-Bohm cages. Physical Review A. 2019;99(1):013826
Gligorić Goran, Beličev Petra, Leykam Daniel, Maluckov Aleksandra, "Nonlinear symmetry breaking of Aharonov-Bohm cages" Physical Review A, 99, no. 1 (2019):013826,
https://doi.org/10.1103/PhysRevA.99.013826 .
1
15
13
11

Nonlinear symmetry breaking of Aharonov-Bohm cages

Gligorić, Goran; Beličev, Petra; Leykam, Daniel; Maluckov, Aleksandra

(2019)

TY  - JOUR
AU  - Gligorić, Goran
AU  - Beličev, Petra
AU  - Leykam, Daniel
AU  - Maluckov, Aleksandra
PY  - 2019
UR  - https://link.aps.org/doi/10.1103/PhysRevA.99.013826
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8035
AB  - We study the influence of mean-field cubic nonlinearity on Aharonov-Bohm caging in a diamond lattice with synthetic magnetic flux. For sufficiently weak nonlinearities, the Aharonov-Bohm caging persists as periodic nonlinear breathing dynamics. Above a critical nonlinearity, symmetry breaking induces a sharp transition in the dynamics and enables stronger wave-packet spreading. This transition is distinct from other flatband networks, where continuous spreading is induced by effective nonlinear hopping or resonances with delocalized modes and is in contrast to the quantum limit, where two-particle hopping enables arbitrarily large spreading. This nonlinear symmetry-breaking transition is readily observable in femtosecond laser-written waveguide arrays. © 2019 American Physical Society.
T2  - Physical Review A
T1  - Nonlinear symmetry breaking of Aharonov-Bohm cages
VL  - 99
IS  - 1
SP  - 013826
DO  - 10.1103/PhysRevA.99.013826
ER  - 
@article{
author = "Gligorić, Goran and Beličev, Petra and Leykam, Daniel and Maluckov, Aleksandra",
year = "2019",
url = "https://link.aps.org/doi/10.1103/PhysRevA.99.013826, http://vinar.vin.bg.ac.rs/handle/123456789/8035",
abstract = "We study the influence of mean-field cubic nonlinearity on Aharonov-Bohm caging in a diamond lattice with synthetic magnetic flux. For sufficiently weak nonlinearities, the Aharonov-Bohm caging persists as periodic nonlinear breathing dynamics. Above a critical nonlinearity, symmetry breaking induces a sharp transition in the dynamics and enables stronger wave-packet spreading. This transition is distinct from other flatband networks, where continuous spreading is induced by effective nonlinear hopping or resonances with delocalized modes and is in contrast to the quantum limit, where two-particle hopping enables arbitrarily large spreading. This nonlinear symmetry-breaking transition is readily observable in femtosecond laser-written waveguide arrays. © 2019 American Physical Society.",
journal = "Physical Review A",
title = "Nonlinear symmetry breaking of Aharonov-Bohm cages",
volume = "99",
number = "1",
pages = "013826",
doi = "10.1103/PhysRevA.99.013826"
}
Gligorić, G., Beličev, P., Leykam, D.,& Maluckov, A. (2019). Nonlinear symmetry breaking of Aharonov-Bohm cages.
Physical Review A, 99(1), 013826.
https://doi.org/10.1103/PhysRevA.99.013826
Gligorić G, Beličev P, Leykam D, Maluckov A. Nonlinear symmetry breaking of Aharonov-Bohm cages. Physical Review A. 2019;99(1):013826
Gligorić Goran, Beličev Petra, Leykam Daniel, Maluckov Aleksandra, "Nonlinear symmetry breaking of Aharonov-Bohm cages" Physical Review A, 99, no. 1 (2019):013826,
https://doi.org/10.1103/PhysRevA.99.013826 .
1
15
13
11

Numerical parametric study of chiral effects and group delays in Ω element based terahertz metamaterial

Stojanović, Danka; Beličev, Petra; Radovanović, Jelena V.; Milanović, Vitomir B.

(2019)

TY  - JOUR
AU  - Stojanović, Danka
AU  - Beličev, Petra
AU  - Radovanović, Jelena V.
AU  - Milanović, Vitomir B.
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8542
AB  - In this work, we have systematically studied the impact of geometric parameters on chiral effects which occur in metamaterial made of Ω elements. The analysis of group delays and electric field enhancements indicate stronger interaction between the structure and right circularly polarized waves. Calculations of optical activity and circular dichroism for different values of geometric parameters, allow us to deduce that the thickness of the wire and the gap size have large influence on these effects. On the other hand, the radius of the wire affects mainly the resonant frequency position which enables frequency tunability. The results indicate that multi-functional design of this chiral metamaterial offers great flexibility for various devices: enantiomeric sensors, circular polarizers and light modulators. © 2019 Elsevier B.V.
T2  - Physics Letters A
T1  - Numerical parametric study of chiral effects and group delays in Ω element based terahertz metamaterial
VL  - 383
IS  - 15
SP  - 1816
EP  - 1820
DO  - 10.1016/j.physleta.2019.02.035
ER  - 
@article{
author = "Stojanović, Danka and Beličev, Petra and Radovanović, Jelena V. and Milanović, Vitomir B.",
year = "2019",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8542",
abstract = "In this work, we have systematically studied the impact of geometric parameters on chiral effects which occur in metamaterial made of Ω elements. The analysis of group delays and electric field enhancements indicate stronger interaction between the structure and right circularly polarized waves. Calculations of optical activity and circular dichroism for different values of geometric parameters, allow us to deduce that the thickness of the wire and the gap size have large influence on these effects. On the other hand, the radius of the wire affects mainly the resonant frequency position which enables frequency tunability. The results indicate that multi-functional design of this chiral metamaterial offers great flexibility for various devices: enantiomeric sensors, circular polarizers and light modulators. © 2019 Elsevier B.V.",
journal = "Physics Letters A",
title = "Numerical parametric study of chiral effects and group delays in Ω element based terahertz metamaterial",
volume = "383",
number = "15",
pages = "1816-1820",
doi = "10.1016/j.physleta.2019.02.035"
}
Stojanović, D., Beličev, P., Radovanović, J. V.,& Milanović, V. B. (2019). Numerical parametric study of chiral effects and group delays in Ω element based terahertz metamaterial.
Physics Letters A, 383(15), 1816-1820.
https://doi.org/10.1016/j.physleta.2019.02.035
Stojanović D, Beličev P, Radovanović JV, Milanović VB. Numerical parametric study of chiral effects and group delays in Ω element based terahertz metamaterial. Physics Letters A. 2019;383(15):1816-1820
Stojanović Danka, Beličev Petra, Radovanović Jelena V., Milanović Vitomir B., "Numerical parametric study of chiral effects and group delays in Ω element based terahertz metamaterial" Physics Letters A, 383, no. 15 (2019):1816-1820,
https://doi.org/10.1016/j.physleta.2019.02.035 .
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