TY  - JOUR
AU  - Stojanović, Mirjana G.
AU  - Gundogdu, Sinan
AU  - Leykam, Daniel
AU  - Angelakis, Dimitris G.
AU  - Stojanović Krasić, Marija
AU  - Stepić, Milutin
AU  - Maluckov, Aleksandra
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10197
AB  - Tuning the values of artificial flux in the two-dimensional octagonal-diamond lattice drives topological phase transitions, including between singular and non-singular flatbands. We study the dynamical properties of nonlinear compact localized modes that can be continued from linear flatband modes. We show how the stability of the compact localized modes can be tuned by the nonlinearity strength or the applied artificial flux. Our model can be realized using ring resonator lattices or nonlinear waveguide arrays.
T2  - Physica Scripta
T1  - Nonlinear compact localized modes in flux-dressed octagonal-diamond lattice
VL  - 97
IS  - 3
SP  - 030006
DO  - 10.1088/1402-4896/ac5357
ER  - 

@article{
author = "Stojanović, Mirjana G. and Gundogdu, Sinan and Leykam, Daniel and Angelakis, Dimitris G. and Stojanović Krasić, Marija and Stepić, Milutin and Maluckov, Aleksandra",
year = "2022",
abstract = "Tuning the values of artificial flux in the two-dimensional octagonal-diamond lattice drives topological phase transitions, including between singular and non-singular flatbands. We study the dynamical properties of nonlinear compact localized modes that can be continued from linear flatband modes. We show how the stability of the compact localized modes can be tuned by the nonlinearity strength or the applied artificial flux. Our model can be realized using ring resonator lattices or nonlinear waveguide arrays.",
journal = "Physica Scripta",
title = "Nonlinear compact localized modes in flux-dressed octagonal-diamond lattice",
volume = "97",
number = "3",
pages = "030006",
doi = "10.1088/1402-4896/ac5357"
}

Stojanović, M. G., Gundogdu, S., Leykam, D., Angelakis, D. G., Stojanović Krasić, M., Stepić, M.,& Maluckov, A.. (2022). Nonlinear compact localized modes in flux-dressed octagonal-diamond lattice. in Physica Scripta, 97(3), 030006.
https://doi.org/10.1088/1402-4896/ac5357

Stojanović MG, Gundogdu S, Leykam D, Angelakis DG, Stojanović Krasić M, Stepić M, Maluckov A. Nonlinear compact localized modes in flux-dressed octagonal-diamond lattice. in Physica Scripta. 2022;97(3):030006.
doi:10.1088/1402-4896/ac5357 .

Stojanović, Mirjana G., Gundogdu, Sinan, Leykam, Daniel, Angelakis, Dimitris G., Stojanović Krasić, Marija, Stepić, Milutin, Maluckov, Aleksandra, "Nonlinear compact localized modes in flux-dressed octagonal-diamond lattice" in Physica Scripta, 97, no. 3 (2022):030006,
https://doi.org/10.1088/1402-4896/ac5357 . .

TY  - JOUR
AU  - Stojanović, Mirjana G.
AU  - Stojanović Krasić, Marija
AU  - Maluckov, Aleksandra
AU  - Johansson, Magnus M.
AU  - Salinas, I. A.
AU  - Vicencio, Rodrigo A.
AU  - Stepić, Milutin
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9664
AB  - We consider a two-dimensional octagonal-diamond network with a fine-tuned diagonal coupling inside the diamond-shaped unit cell. Its linear spectrum exhibits coexistence of two dispersive bands (DBs) and two flat bands (FBs), touching one of the DBs embedded between them. Analogous to the kagome lattice, one of the FBs will constitute the ground state of the system for a proper sign choice of the Hamiltonian. The system is characterized by two different flat-band fundamental octagonal compactons, originating from the destructive interference of fully geometric nature. In the presence of a nonlinear amplitude (on-site) perturbation, the single-octagon linear modes continue into one-parameter families of nonlinear compact modes with the same amplitude and phase structure. However, numerical stability analysis indicates that all strictly compact nonlinear modes are unstable, either purely exponentially or with oscillatory instabilities, for weak and intermediate nonlinearities and sufficiently large system sizes. Stabilization may appear in certain ranges for finite systems and, for the compacton originating from the band at the spectral edge, also in a regime of very large focusing nonlinearities. In contrast to the kagome lattice, the latter compacton family will become unstable already for arbitrarily weak defocusing nonlinearity for large enough systems. We show analytically the existence of a critical system size consisting of 12 octagon rings, such that the ground state for weak defocusing nonlinearity is a stable single compacton for smaller systems, and a continuation of a nontrivial, noncompact linear combination of single compacton modes for larger systems. Investigating generally the different nonlinear localized (noncompact) mode families in the semi-infinite gap bounded by this FB, we find that, for increasing (defocusing) nonlinearity the stable ground state will continuously develop into an exponentially localized mode with two main peaks in antiphase. At a critical nonlinearity strength a symmetry-breaking pitchfork bifurcation appears, so that the stable ground state is single peaked for larger defocusing nonlinearities. We also investigate numerically the mobility of localized modes in this regime and find that the considered modes are generally immobile both with respect to axial and diagonal phase-gradient perturbations.
T2  - Physical Review A
T1  - Localized modes in linear and nonlinear octagonal-diamond lattices with two flat bands
VL  - 102
IS  - 2
SP  - 023532
DO  - 10.1103/PhysRevA.102.023532
ER  - 

@article{
author = "Stojanović, Mirjana G. and Stojanović Krasić, Marija and Maluckov, Aleksandra and Johansson, Magnus M. and Salinas, I. A. and Vicencio, Rodrigo A. and Stepić, Milutin",
year = "2020",
abstract = "We consider a two-dimensional octagonal-diamond network with a fine-tuned diagonal coupling inside the diamond-shaped unit cell. Its linear spectrum exhibits coexistence of two dispersive bands (DBs) and two flat bands (FBs), touching one of the DBs embedded between them. Analogous to the kagome lattice, one of the FBs will constitute the ground state of the system for a proper sign choice of the Hamiltonian. The system is characterized by two different flat-band fundamental octagonal compactons, originating from the destructive interference of fully geometric nature. In the presence of a nonlinear amplitude (on-site) perturbation, the single-octagon linear modes continue into one-parameter families of nonlinear compact modes with the same amplitude and phase structure. However, numerical stability analysis indicates that all strictly compact nonlinear modes are unstable, either purely exponentially or with oscillatory instabilities, for weak and intermediate nonlinearities and sufficiently large system sizes. Stabilization may appear in certain ranges for finite systems and, for the compacton originating from the band at the spectral edge, also in a regime of very large focusing nonlinearities. In contrast to the kagome lattice, the latter compacton family will become unstable already for arbitrarily weak defocusing nonlinearity for large enough systems. We show analytically the existence of a critical system size consisting of 12 octagon rings, such that the ground state for weak defocusing nonlinearity is a stable single compacton for smaller systems, and a continuation of a nontrivial, noncompact linear combination of single compacton modes for larger systems. Investigating generally the different nonlinear localized (noncompact) mode families in the semi-infinite gap bounded by this FB, we find that, for increasing (defocusing) nonlinearity the stable ground state will continuously develop into an exponentially localized mode with two main peaks in antiphase. At a critical nonlinearity strength a symmetry-breaking pitchfork bifurcation appears, so that the stable ground state is single peaked for larger defocusing nonlinearities. We also investigate numerically the mobility of localized modes in this regime and find that the considered modes are generally immobile both with respect to axial and diagonal phase-gradient perturbations.",
journal = "Physical Review A",
title = "Localized modes in linear and nonlinear octagonal-diamond lattices with two flat bands",
volume = "102",
number = "2",
pages = "023532",
doi = "10.1103/PhysRevA.102.023532"
}

Stojanović, M. G., Stojanović Krasić, M., Maluckov, A., Johansson, M. M., Salinas, I. A., Vicencio, R. A.,& Stepić, M.. (2020). Localized modes in linear and nonlinear octagonal-diamond lattices with two flat bands. in Physical Review A, 102(2), 023532.
https://doi.org/10.1103/PhysRevA.102.023532

Stojanović MG, Stojanović Krasić M, Maluckov A, Johansson MM, Salinas IA, Vicencio RA, Stepić M. Localized modes in linear and nonlinear octagonal-diamond lattices with two flat bands. in Physical Review A. 2020;102(2):023532.
doi:10.1103/PhysRevA.102.023532 .

Stojanović, Mirjana G., Stojanović Krasić, Marija, Maluckov, Aleksandra, Johansson, Magnus M., Salinas, I. A., Vicencio, Rodrigo A., Stepić, Milutin, "Localized modes in linear and nonlinear octagonal-diamond lattices with two flat bands" in Physical Review A, 102, no. 2 (2020):023532,
https://doi.org/10.1103/PhysRevA.102.023532 . .

TY  - JOUR
AU  - Stojanović Krasić, Marija
AU  - Stojanović, Mirjana G.
AU  - Maluckov, Aleksandra
AU  - Maczewsky, Lukas J.
AU  - Szameit, Alexander
AU  - Stepić, Milutin
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9684
AB  - We investigate analytically and numerically the existence and dynamical stability of different localized modes in a two-dimensional photonic lattice comprising a square plaquette inscribed in the dodecagon lattices. The eigenvalue spectrum of the underlying linear lattice is characterized by a net formed of one flat band and four dispersive bands. By tailoring the intersite coupling coefficient ratio, opening of gaps between two pairs of neighboring dispersive bands can be induced, while the fully degenerate flat band characterized by compact eigenmodes stays nested between two inner dispersive bands. The nonlinearity destabilizes the compact modes and gives rise to unique families of localized modes in the newly opened gaps, as well as in the semi-infinite gaps. The governing mechanism of mode localization in that case is the light energy self-trapping effect. We have shown the stability of a few families of nonlinear modes in gaps. The suggested lattice model may serve for probing various artificial flat-band systems such as ultracold atoms in optical lattices, periodic electronic networks, and polariton condensates.
T2  - Physical Review E
T1  - Localized modes in a two-dimensional lattice with a pluslike geometry
VL  - 102
IS  - 3
SP  - 032207
DO  - 10.1103/PhysRevE.102.032207
ER  - 

@article{
author = "Stojanović Krasić, Marija and Stojanović, Mirjana G. and Maluckov, Aleksandra and Maczewsky, Lukas J. and Szameit, Alexander and Stepić, Milutin",
year = "2020",
abstract = "We investigate analytically and numerically the existence and dynamical stability of different localized modes in a two-dimensional photonic lattice comprising a square plaquette inscribed in the dodecagon lattices. The eigenvalue spectrum of the underlying linear lattice is characterized by a net formed of one flat band and four dispersive bands. By tailoring the intersite coupling coefficient ratio, opening of gaps between two pairs of neighboring dispersive bands can be induced, while the fully degenerate flat band characterized by compact eigenmodes stays nested between two inner dispersive bands. The nonlinearity destabilizes the compact modes and gives rise to unique families of localized modes in the newly opened gaps, as well as in the semi-infinite gaps. The governing mechanism of mode localization in that case is the light energy self-trapping effect. We have shown the stability of a few families of nonlinear modes in gaps. The suggested lattice model may serve for probing various artificial flat-band systems such as ultracold atoms in optical lattices, periodic electronic networks, and polariton condensates.",
journal = "Physical Review E",
title = "Localized modes in a two-dimensional lattice with a pluslike geometry",
volume = "102",
number = "3",
pages = "032207",
doi = "10.1103/PhysRevE.102.032207"
}

Stojanović Krasić, M., Stojanović, M. G., Maluckov, A., Maczewsky, L. J., Szameit, A.,& Stepić, M.. (2020). Localized modes in a two-dimensional lattice with a pluslike geometry. in Physical Review E, 102(3), 032207.
https://doi.org/10.1103/PhysRevE.102.032207

Stojanović Krasić M, Stojanović MG, Maluckov A, Maczewsky LJ, Szameit A, Stepić M. Localized modes in a two-dimensional lattice with a pluslike geometry. in Physical Review E. 2020;102(3):032207.
doi:10.1103/PhysRevE.102.032207 .

Stojanović Krasić, Marija, Stojanović, Mirjana G., Maluckov, Aleksandra, Maczewsky, Lukas J., Szameit, Alexander, Stepić, Milutin, "Localized modes in a two-dimensional lattice with a pluslike geometry" in Physical Review E, 102, no. 3 (2020):032207,
https://doi.org/10.1103/PhysRevE.102.032207 . .

TY  - CONF
AU  - Stojanović Krasić, Marija
AU  - Stojanović, Mirjana G.
AU  - Maluckov, Aleksandra
AU  - Stepić, Milutin
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11848
AB  - We have proposed a design of new photonic lattice which does not exist in nature but might be easily fabricated by femtosecond laser inscription technique. The novel two-dimensional photonic lattice comprises of square elementary plaquette inscribed in dodecagon elementary plaquette. Unit cell of the lattice consists of five linearly coupled sites distributed at the edges and in the center of a “plus” sign. Existence and stability of linear and nonlinear localized modes in the uniform and binary “plus” lattice are numerically investigated. The energy spectrum of linear lattice is characterized by a flat band (FB) and four dispersive bands (DB). The FB intersects with two neighboring DBs at four Dirac points at the end of and one in the middle of the Brillouin zone [1]. The lattice binarity provided the opening of gaps between DBs. At the end of the first stage of our study, we can report the existence of FB modes, i.e. compactons, which in the presence of nonlinearity lose the stability owing to the Fano-resonances with the extended states from DBs [2]. In addition, we found a pair of new nonlinear localized mode families in gaps opened by binarity, which could be stable in certain regions of the nonlinearity parameter. The next challenge is related to searching for edge modes and energy transport characteristics in the lattice.
PB  - Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade
C3  - PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts
T1  - Localized modes in two-dimensional “plus” lattice
SP  - 89
EP  - 89
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11848
ER  - 

@conference{
author = "Stojanović Krasić, Marija and Stojanović, Mirjana G. and Maluckov, Aleksandra and Stepić, Milutin",
year = "2019",
abstract = "We have proposed a design of new photonic lattice which does not exist in nature but might be easily fabricated by femtosecond laser inscription technique. The novel two-dimensional photonic lattice comprises of square elementary plaquette inscribed in dodecagon elementary plaquette. Unit cell of the lattice consists of five linearly coupled sites distributed at the edges and in the center of a “plus” sign. Existence and stability of linear and nonlinear localized modes in the uniform and binary “plus” lattice are numerically investigated. The energy spectrum of linear lattice is characterized by a flat band (FB) and four dispersive bands (DB). The FB intersects with two neighboring DBs at four Dirac points at the end of and one in the middle of the Brillouin zone [1]. The lattice binarity provided the opening of gaps between DBs. At the end of the first stage of our study, we can report the existence of FB modes, i.e. compactons, which in the presence of nonlinearity lose the stability owing to the Fano-resonances with the extended states from DBs [2]. In addition, we found a pair of new nonlinear localized mode families in gaps opened by binarity, which could be stable in certain regions of the nonlinearity parameter. The next challenge is related to searching for edge modes and energy transport characteristics in the lattice.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade",
journal = "PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts",
title = "Localized modes in two-dimensional “plus” lattice",
pages = "89-89",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11848"
}

Stojanović Krasić, M., Stojanović, M. G., Maluckov, A.,& Stepić, M.. (2019). Localized modes in two-dimensional “plus” lattice. in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade., 89-89.
https://hdl.handle.net/21.15107/rcub_vinar_11848

Stojanović Krasić M, Stojanović MG, Maluckov A, Stepić M. Localized modes in two-dimensional “plus” lattice. in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts. 2019;:89-89.
https://hdl.handle.net/21.15107/rcub_vinar_11848 .

Stojanović Krasić, Marija, Stojanović, Mirjana G., Maluckov, Aleksandra, Stepić, Milutin, "Localized modes in two-dimensional “plus” lattice" in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts (2019):89-89,
https://hdl.handle.net/21.15107/rcub_vinar_11848 .

TY  - JOUR
AU  - Stojanović Krasić, Marija
AU  - Mančić, Ana
AU  - Kuzmanović, Slavica
AU  - Đorić-Veljković, Snežana M.
AU  - Stepić, Milutin
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1531
AB  - We numerically analysed various localized modes formed by light beam propagation through one-dimensional composite lattices consisting of two structurally different linear lattices and a linear defect (LD) in one of them. The localized modes are found in the area between the interface and the LD, near the interface and around the LD. It has been confirmed that a LD narrower than the other waveguides (WGs) in the array is better potential barrier and captures the light better than a LD that is wider than the other WGs in the array. Also, it has been shown that a LD narrower than the other WGs in the lattice captures the light more efficiently than any saturable nonlinear defect (ND) of the same width as other elements of the lattice. On the other hand, it is obtained that the influence of a LD wider than the other WGs in the array on light propagation can be mimicked by insertion of an adequate ND whose width coincides with that of the other WGs. Depending on the defect size, its position and input beam parameters, controllable beam trapping, reflection and refraction are observed.
T2  - Optics Communications
T1  - Linear and interface defects in composite linear photonic lattice
VL  - 394
SP  - 6
EP  - 13
DO  - 10.1016/j.optcom.2017.02.021
ER  - 

@article{
author = "Stojanović Krasić, Marija and Mančić, Ana and Kuzmanović, Slavica and Đorić-Veljković, Snežana M. and Stepić, Milutin",
year = "2017",
abstract = "We numerically analysed various localized modes formed by light beam propagation through one-dimensional composite lattices consisting of two structurally different linear lattices and a linear defect (LD) in one of them. The localized modes are found in the area between the interface and the LD, near the interface and around the LD. It has been confirmed that a LD narrower than the other waveguides (WGs) in the array is better potential barrier and captures the light better than a LD that is wider than the other WGs in the array. Also, it has been shown that a LD narrower than the other WGs in the lattice captures the light more efficiently than any saturable nonlinear defect (ND) of the same width as other elements of the lattice. On the other hand, it is obtained that the influence of a LD wider than the other WGs in the array on light propagation can be mimicked by insertion of an adequate ND whose width coincides with that of the other WGs. Depending on the defect size, its position and input beam parameters, controllable beam trapping, reflection and refraction are observed.",
journal = "Optics Communications",
title = "Linear and interface defects in composite linear photonic lattice",
volume = "394",
pages = "6-13",
doi = "10.1016/j.optcom.2017.02.021"
}

Stojanović Krasić, M., Mančić, A., Kuzmanović, S., Đorić-Veljković, S. M.,& Stepić, M.. (2017). Linear and interface defects in composite linear photonic lattice. in Optics Communications, 394, 6-13.
https://doi.org/10.1016/j.optcom.2017.02.021

Stojanović Krasić M, Mančić A, Kuzmanović S, Đorić-Veljković SM, Stepić M. Linear and interface defects in composite linear photonic lattice. in Optics Communications. 2017;394:6-13.
doi:10.1016/j.optcom.2017.02.021 .

Stojanović Krasić, Marija, Mančić, Ana, Kuzmanović, Slavica, Đorić-Veljković, Snežana M., Stepić, Milutin, "Linear and interface defects in composite linear photonic lattice" in Optics Communications, 394 (2017):6-13,
https://doi.org/10.1016/j.optcom.2017.02.021 . .

TY  - JOUR
AU  - Kuzmanović, Slavica
AU  - Stojanović Krasić, Marija
AU  - Mančić, Ana
AU  - Drljača, Branko
AU  - Stepić, Milutin
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9061
AB  - In this paper, the light beam propagation through one-dimensional photonic lattice, possessing one nonlinear defect and one linear defect, has been investigated numerically. Different dynamical regimes have been identified in terms of the distance between the two defects, position of the incident light beam, the width of linear defect, the values of nonlinearity and presence of the transverse kick. Strong localized modes on the defects, breathing and zig-zag modes in the area between defects have been observed. It has been concluded that the width of the linear defect placed next to the nonlinear one influences localization of the beam at the nonlinear waveguide. On the other hand, the nonlinear defect, regardless of the values of nonlinearity, have a small influence on the beam propagation in photonic lattice. It has been observed that the transverse kick of the initial beam leads to the distortion of localized structures. By launching the light beam towards defects, the reflection of light has been noticed. Presented results can be useful for different applications, such as blocking, filtering and routing of light beam through optical media.
T2  - The University Thought - Publication in Natural Sciences
T1  - The influence of nonlinear and linear defects on the light propagation through linear one-dimensional photonic lattice
VL  - 6
IS  - 2
SP  - 61
EP  - 66
DO  - 10.5937/univtho6-12670
ER  - 

@article{
author = "Kuzmanović, Slavica and Stojanović Krasić, Marija and Mančić, Ana and Drljača, Branko and Stepić, Milutin",
year = "2016",
abstract = "In this paper, the light beam propagation through one-dimensional photonic lattice, possessing one nonlinear defect and one linear defect, has been investigated numerically. Different dynamical regimes have been identified in terms of the distance between the two defects, position of the incident light beam, the width of linear defect, the values of nonlinearity and presence of the transverse kick. Strong localized modes on the defects, breathing and zig-zag modes in the area between defects have been observed. It has been concluded that the width of the linear defect placed next to the nonlinear one influences localization of the beam at the nonlinear waveguide. On the other hand, the nonlinear defect, regardless of the values of nonlinearity, have a small influence on the beam propagation in photonic lattice. It has been observed that the transverse kick of the initial beam leads to the distortion of localized structures. By launching the light beam towards defects, the reflection of light has been noticed. Presented results can be useful for different applications, such as blocking, filtering and routing of light beam through optical media.",
journal = "The University Thought - Publication in Natural Sciences",
title = "The influence of nonlinear and linear defects on the light propagation through linear one-dimensional photonic lattice",
volume = "6",
number = "2",
pages = "61-66",
doi = "10.5937/univtho6-12670"
}

Kuzmanović, S., Stojanović Krasić, M., Mančić, A., Drljača, B.,& Stepić, M.. (2016). The influence of nonlinear and linear defects on the light propagation through linear one-dimensional photonic lattice. in The University Thought - Publication in Natural Sciences, 6(2), 61-66.
https://doi.org/10.5937/univtho6-12670

Kuzmanović S, Stojanović Krasić M, Mančić A, Drljača B, Stepić M. The influence of nonlinear and linear defects on the light propagation through linear one-dimensional photonic lattice. in The University Thought - Publication in Natural Sciences. 2016;6(2):61-66.
doi:10.5937/univtho6-12670 .

Kuzmanović, Slavica, Stojanović Krasić, Marija, Mančić, Ana, Drljača, Branko, Stepić, Milutin, "The influence of nonlinear and linear defects on the light propagation through linear one-dimensional photonic lattice" in The University Thought - Publication in Natural Sciences, 6, no. 2 (2016):61-66,
https://doi.org/10.5937/univtho6-12670 . .

TY  - JOUR
AU  - Kuzmanović, Slavica
AU  - Stojanović Krasić, Marija
AU  - Milović, Daniela M.
AU  - Miletić, Miodrag B.
AU  - Radosavljević, Ana
AU  - Gligorić, Goran
AU  - Maluckov, Aleksandra
AU  - Stepić, Milutin
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/727
AB  - Light propagation through composite photonic lattice containing a cavity bounded by the interface between two structurally different linear lattices and on-site nonlinear defect in one of them is investigated numerically. We find conditions under which dynamically stable bounded cavity modes can exist. We observe various cavity localized modes such as: single-hump, multi-hump, and moving breathing modes. Light propagation obstructions are phenomenologically related to the Fano resonances. Presented numerical findings may lead to interesting applications, such as blocking, filtering, and transporting of light beams through the optical medium.
T2  - European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics
T1  - Light propagation inside cavity formed between nonlinear defect and interface of two dissimilar one-dimensional linear photonic lattices
VL  - 69
IS  - 9
DO  - 10.1140/epjd/e2015-60243-0
ER  - 

@article{
author = "Kuzmanović, Slavica and Stojanović Krasić, Marija and Milović, Daniela M. and Miletić, Miodrag B. and Radosavljević, Ana and Gligorić, Goran and Maluckov, Aleksandra and Stepić, Milutin",
year = "2015",
abstract = "Light propagation through composite photonic lattice containing a cavity bounded by the interface between two structurally different linear lattices and on-site nonlinear defect in one of them is investigated numerically. We find conditions under which dynamically stable bounded cavity modes can exist. We observe various cavity localized modes such as: single-hump, multi-hump, and moving breathing modes. Light propagation obstructions are phenomenologically related to the Fano resonances. Presented numerical findings may lead to interesting applications, such as blocking, filtering, and transporting of light beams through the optical medium.",
journal = "European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics",
title = "Light propagation inside cavity formed between nonlinear defect and interface of two dissimilar one-dimensional linear photonic lattices",
volume = "69",
number = "9",
doi = "10.1140/epjd/e2015-60243-0"
}

Kuzmanović, S., Stojanović Krasić, M., Milović, D. M., Miletić, M. B., Radosavljević, A., Gligorić, G., Maluckov, A.,& Stepić, M.. (2015). Light propagation inside cavity formed between nonlinear defect and interface of two dissimilar one-dimensional linear photonic lattices. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 69(9).
https://doi.org/10.1140/epjd/e2015-60243-0

Kuzmanović S, Stojanović Krasić M, Milović DM, Miletić MB, Radosavljević A, Gligorić G, Maluckov A, Stepić M. Light propagation inside cavity formed between nonlinear defect and interface of two dissimilar one-dimensional linear photonic lattices. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics. 2015;69(9).
doi:10.1140/epjd/e2015-60243-0 .

Kuzmanović, Slavica, Stojanović Krasić, Marija, Milović, Daniela M., Miletić, Miodrag B., Radosavljević, Ana, Gligorić, Goran, Maluckov, Aleksandra, Stepić, Milutin, "Light propagation inside cavity formed between nonlinear defect and interface of two dissimilar one-dimensional linear photonic lattices" in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 69, no. 9 (2015),
https://doi.org/10.1140/epjd/e2015-60243-0 . .

TY  - JOUR
AU  - Kuzmanović, Slavica
AU  - Stojanović Krasić, Marija
AU  - Milović, Daniela M.
AU  - Radosavljević, Ana
AU  - Gligorić, Goran
AU  - Maluckov, Aleksandra
AU  - Stepić, Milutin
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/394
AB  - We study numerically light beam propagation across uniform, linear, one-dimensional photonic lattice possessing one nonlinear defect. Depending on the strength of nonlinear defect, input beam position and phase shift, different dynamical regimes have been identified. We distinguish input parameters set for which a regime of light propagation blockade by the nonlinear defect appears. Obtained results may be useful for all-optical control of transmission of waves in interferometry.
T2  - Physica Scripta
T1  - Defect induced wave-packet dynamics in linear one-dimensional photonic lattices
VL  - 90
IS  - 2
DO  - 10.1088/0031-8949/90/2/025505
ER  - 

@article{
author = "Kuzmanović, Slavica and Stojanović Krasić, Marija and Milović, Daniela M. and Radosavljević, Ana and Gligorić, Goran and Maluckov, Aleksandra and Stepić, Milutin",
year = "2015",
abstract = "We study numerically light beam propagation across uniform, linear, one-dimensional photonic lattice possessing one nonlinear defect. Depending on the strength of nonlinear defect, input beam position and phase shift, different dynamical regimes have been identified. We distinguish input parameters set for which a regime of light propagation blockade by the nonlinear defect appears. Obtained results may be useful for all-optical control of transmission of waves in interferometry.",
journal = "Physica Scripta",
title = "Defect induced wave-packet dynamics in linear one-dimensional photonic lattices",
volume = "90",
number = "2",
doi = "10.1088/0031-8949/90/2/025505"
}

Kuzmanović, S., Stojanović Krasić, M., Milović, D. M., Radosavljević, A., Gligorić, G., Maluckov, A.,& Stepić, M.. (2015). Defect induced wave-packet dynamics in linear one-dimensional photonic lattices. in Physica Scripta, 90(2).
https://doi.org/10.1088/0031-8949/90/2/025505

Kuzmanović S, Stojanović Krasić M, Milović DM, Radosavljević A, Gligorić G, Maluckov A, Stepić M. Defect induced wave-packet dynamics in linear one-dimensional photonic lattices. in Physica Scripta. 2015;90(2).
doi:10.1088/0031-8949/90/2/025505 .

Kuzmanović, Slavica, Stojanović Krasić, Marija, Milović, Daniela M., Radosavljević, Ana, Gligorić, Goran, Maluckov, Aleksandra, Stepić, Milutin, "Defect induced wave-packet dynamics in linear one-dimensional photonic lattices" in Physica Scripta, 90, no. 2 (2015),
https://doi.org/10.1088/0031-8949/90/2/025505 . .

TY  - JOUR
AU  - Stojanović, Marija
AU  - Petrovic, M. D.
AU  - Gligorić, Goran
AU  - Maluckov, Aleksandra
AU  - Hadžievski, Ljupčo
AU  - Malomed, Boris A.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7020
AB  - We investigate the stability and dynamical properties of complexes consisting of two identical vortices with topological charges S = 1 and 2 in the system of two linearly on-site-coupled two-dimensional (2D) vortices. The system is mathematically modeled by two coupled nonlinear differential-difference 2D Schrodinger equations. It is found that the on-site and off-site vortices form symmetric and asymmetric complexes, respectively, with respect to the interface sites. In general, the existence regions of complexes shrink with an increase of the interlattice coupling strength. Stable symmetric complexes exist within the stability window in the parametric space whose width gradually shrinks with an increase of the interlattice coupling strength. The asymmetric vortex complexes are unstable, except in the limit of vanishing coupling between lattices.
T2  - Physica Scripta
T1  - Vortex complexes in two-dimensional optical lattices linearly coupled at a single site
VL  - T157
DO  - 10.1088/0031-8949/2013/T157/014030
ER  - 

@article{
author = "Stojanović, Marija and Petrovic, M. D. and Gligorić, Goran and Maluckov, Aleksandra and Hadžievski, Ljupčo and Malomed, Boris A.",
year = "2013",
abstract = "We investigate the stability and dynamical properties of complexes consisting of two identical vortices with topological charges S = 1 and 2 in the system of two linearly on-site-coupled two-dimensional (2D) vortices. The system is mathematically modeled by two coupled nonlinear differential-difference 2D Schrodinger equations. It is found that the on-site and off-site vortices form symmetric and asymmetric complexes, respectively, with respect to the interface sites. In general, the existence regions of complexes shrink with an increase of the interlattice coupling strength. Stable symmetric complexes exist within the stability window in the parametric space whose width gradually shrinks with an increase of the interlattice coupling strength. The asymmetric vortex complexes are unstable, except in the limit of vanishing coupling between lattices.",
journal = "Physica Scripta",
title = "Vortex complexes in two-dimensional optical lattices linearly coupled at a single site",
volume = "T157",
doi = "10.1088/0031-8949/2013/T157/014030"
}

Stojanović, M., Petrovic, M. D., Gligorić, G., Maluckov, A., Hadžievski, L.,& Malomed, B. A.. (2013). Vortex complexes in two-dimensional optical lattices linearly coupled at a single site. in Physica Scripta, T157.
https://doi.org/10.1088/0031-8949/2013/T157/014030

Stojanović M, Petrovic MD, Gligorić G, Maluckov A, Hadžievski L, Malomed BA. Vortex complexes in two-dimensional optical lattices linearly coupled at a single site. in Physica Scripta. 2013;T157.
doi:10.1088/0031-8949/2013/T157/014030 .

Stojanović, Marija, Petrovic, M. D., Gligorić, Goran, Maluckov, Aleksandra, Hadžievski, Ljupčo, Malomed, Boris A., "Vortex complexes in two-dimensional optical lattices linearly coupled at a single site" in Physica Scripta, T157 (2013),
https://doi.org/10.1088/0031-8949/2013/T157/014030 . .