Holographic methods for generation of specific wave-fronts to better control quantum coherent effects in laser-atom interactions

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Holographic methods for generation of specific wave-fronts to better control quantum coherent effects in laser-atom interactions (en)
Холографске методе генерисања специфичних таласних фронтова за ефикасну контролу квантних кохерентних ефеката у интеракцији атома и ласера (sr)
Holografske metode generisanja specifičnih talasnih frontova za efikasnu kontrolu kvantnih koherentnih efekata u interakciji atoma i lasera (sr_RS)
Authors

Publications

Molding Wetting by Laser-Induced Nanostructures

Kovačević, Aleksander G.; Petrović, Suzana; Mimidis, Alexandros; Stratakis, Emmanuel; Pantelić, Dejan; Kolarić, Branko

(2020)

TY  - JOUR
AU  - Kovačević, Aleksander G.
AU  - Petrović, Suzana
AU  - Mimidis, Alexandros
AU  - Stratakis, Emmanuel
AU  - Pantelić, Dejan
AU  - Kolarić, Branko
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9632
AB  - The influence of material characteristics—i.e., type or surface texture—to wetting properties is nowadays increased by the implementation of ultrafast lasers for nanostructuring. In this account, we exposed multilayer thin metal film samples of different materials to a femtosecond laser beam at a 1030 nm wavelength. The interaction generated high-quality laser-induced periodic surface structures (LIPSS) of spatial periods between 740 and 790 nm and with maximal average corrugation height below 100 nm. The contact angle (CA) values of the water droplets on the surface were estimated and the values between unmodified and modified samples were compared. Even though the laser interaction changed both the surface morphology and the chemical composition, the wetting properties were predominantly influenced by the small change in morphology causing the increase in the contact angle of ~80%, which could not be explained classically. The influence of both surface corrugation and chemical composition to the wetting properties has been thoroughly investigated, discussed and explained. The presented results clearly confirm that femtosecond patterning can be used to mold wetting properties.
T2  - Applied Sciences
T1  - Molding Wetting by Laser-Induced Nanostructures
VL  - 10
IS  - 17
SP  - 6008
DO  - 10.3390/app10176008
ER  - 
@article{
author = "Kovačević, Aleksander G. and Petrović, Suzana and Mimidis, Alexandros and Stratakis, Emmanuel and Pantelić, Dejan and Kolarić, Branko",
year = "2020",
abstract = "The influence of material characteristics—i.e., type or surface texture—to wetting properties is nowadays increased by the implementation of ultrafast lasers for nanostructuring. In this account, we exposed multilayer thin metal film samples of different materials to a femtosecond laser beam at a 1030 nm wavelength. The interaction generated high-quality laser-induced periodic surface structures (LIPSS) of spatial periods between 740 and 790 nm and with maximal average corrugation height below 100 nm. The contact angle (CA) values of the water droplets on the surface were estimated and the values between unmodified and modified samples were compared. Even though the laser interaction changed both the surface morphology and the chemical composition, the wetting properties were predominantly influenced by the small change in morphology causing the increase in the contact angle of ~80%, which could not be explained classically. The influence of both surface corrugation and chemical composition to the wetting properties has been thoroughly investigated, discussed and explained. The presented results clearly confirm that femtosecond patterning can be used to mold wetting properties.",
journal = "Applied Sciences",
title = "Molding Wetting by Laser-Induced Nanostructures",
volume = "10",
number = "17",
pages = "6008",
doi = "10.3390/app10176008"
}
Kovačević, A. G., Petrović, S., Mimidis, A., Stratakis, E., Pantelić, D.,& Kolarić, B.. (2020). Molding Wetting by Laser-Induced Nanostructures. in Applied Sciences, 10(17), 6008.
https://doi.org/10.3390/app10176008
Kovačević AG, Petrović S, Mimidis A, Stratakis E, Pantelić D, Kolarić B. Molding Wetting by Laser-Induced Nanostructures. in Applied Sciences. 2020;10(17):6008.
doi:10.3390/app10176008 .
Kovačević, Aleksander G., Petrović, Suzana, Mimidis, Alexandros, Stratakis, Emmanuel, Pantelić, Dejan, Kolarić, Branko, "Molding Wetting by Laser-Induced Nanostructures" in Applied Sciences, 10, no. 17 (2020):6008,
https://doi.org/10.3390/app10176008 . .

Inducing LIPSS on multilayer thin metal films by femtosecond laser beam of different orientations

Kovačević, Aleksander G.; Petrović, Suzana; Salatić, Branislav; Lekić, Marina; Vasić, Borislav Z.; Gajić, Radoš; Pantelić, Dejan; Jelenković, Branislav M.

(2020)

TY  - JOUR
AU  - Kovačević, Aleksander G.
AU  - Petrović, Suzana
AU  - Salatić, Branislav
AU  - Lekić, Marina
AU  - Vasić, Borislav Z.
AU  - Gajić, Radoš
AU  - Pantelić, Dejan
AU  - Jelenković, Branislav M.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9015
AB  - The occurrence of laser-induced periodic surface structures (LIPSS) has been known for a while. Multilayer thin films, like Al/Ti, are suitable for LIPSS formation and attractive for applications—due to their wearing behavior and corrosion resistance; LIPSS generation may improve their properties as well. LIPSS properties depend not only on the material but also on the beam characteristics, like wavelength, polarization and scanning directions, etc. After exposing with NIR femtosecond pulses from Coherent Mira 900 laser system in several beam exposures, we have analyzed the samples of thin metal film systems with Tescan Mira3 SEM and NTegra AFM. The formation of LIPSS is most probably due to the generation of surface plasmon polariton, through the periodic distribution of energy in the interaction zone which lead to thermal processes in layers and interfaces. Two types of LIPSS were generated, which differ in shape, orientation and in ablation pronounced or not. For consecutive interactions in the same direction, LIPSS maintained its orientation, while for orthogonal passes LIPSS with mutually orthogonal orientation were generated. LIPSS period fluctuated between 320 and 380 nm and structures with pronounced ablation have significantly smaller width. Probable mechanism is that for greater accumulated energy pronounced ablation takes place giving LIPSS in the form of trenches or grooves, while for less accumulated energy the buildup of the material—probably due to pronounced oxidation—lead to LIPSS in the form of hills or ridges.
T2  - Optical and Quantum Electronics
T1  - Inducing LIPSS on multilayer thin metal films by femtosecond laser beam of different orientations
VL  - 52
IS  - 6
SP  - 301
DO  - 10.1007/s11082-020-02398-2
ER  - 
@article{
author = "Kovačević, Aleksander G. and Petrović, Suzana and Salatić, Branislav and Lekić, Marina and Vasić, Borislav Z. and Gajić, Radoš and Pantelić, Dejan and Jelenković, Branislav M.",
year = "2020",
abstract = "The occurrence of laser-induced periodic surface structures (LIPSS) has been known for a while. Multilayer thin films, like Al/Ti, are suitable for LIPSS formation and attractive for applications—due to their wearing behavior and corrosion resistance; LIPSS generation may improve their properties as well. LIPSS properties depend not only on the material but also on the beam characteristics, like wavelength, polarization and scanning directions, etc. After exposing with NIR femtosecond pulses from Coherent Mira 900 laser system in several beam exposures, we have analyzed the samples of thin metal film systems with Tescan Mira3 SEM and NTegra AFM. The formation of LIPSS is most probably due to the generation of surface plasmon polariton, through the periodic distribution of energy in the interaction zone which lead to thermal processes in layers and interfaces. Two types of LIPSS were generated, which differ in shape, orientation and in ablation pronounced or not. For consecutive interactions in the same direction, LIPSS maintained its orientation, while for orthogonal passes LIPSS with mutually orthogonal orientation were generated. LIPSS period fluctuated between 320 and 380 nm and structures with pronounced ablation have significantly smaller width. Probable mechanism is that for greater accumulated energy pronounced ablation takes place giving LIPSS in the form of trenches or grooves, while for less accumulated energy the buildup of the material—probably due to pronounced oxidation—lead to LIPSS in the form of hills or ridges.",
journal = "Optical and Quantum Electronics",
title = "Inducing LIPSS on multilayer thin metal films by femtosecond laser beam of different orientations",
volume = "52",
number = "6",
pages = "301",
doi = "10.1007/s11082-020-02398-2"
}
Kovačević, A. G., Petrović, S., Salatić, B., Lekić, M., Vasić, B. Z., Gajić, R., Pantelić, D.,& Jelenković, B. M.. (2020). Inducing LIPSS on multilayer thin metal films by femtosecond laser beam of different orientations. in Optical and Quantum Electronics, 52(6), 301.
https://doi.org/10.1007/s11082-020-02398-2
Kovačević AG, Petrović S, Salatić B, Lekić M, Vasić BZ, Gajić R, Pantelić D, Jelenković BM. Inducing LIPSS on multilayer thin metal films by femtosecond laser beam of different orientations. in Optical and Quantum Electronics. 2020;52(6):301.
doi:10.1007/s11082-020-02398-2 .
Kovačević, Aleksander G., Petrović, Suzana, Salatić, Branislav, Lekić, Marina, Vasić, Borislav Z., Gajić, Radoš, Pantelić, Dejan, Jelenković, Branislav M., "Inducing LIPSS on multilayer thin metal films by femtosecond laser beam of different orientations" in Optical and Quantum Electronics, 52, no. 6 (2020):301,
https://doi.org/10.1007/s11082-020-02398-2 . .

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",
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. in 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. in Journal of Synchrotron Radiation. 2019;26(3):700-707.
doi:10.1107/S1600577519003412 .
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" in Journal of Synchrotron Radiation, 26, no. 3 (2019):700-707,
https://doi.org/10.1107/S1600577519003412 . .
1
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Effects of temperature and pressure on luminescent properties of Sr 2 CeO 4: Eu3+ nanophosphor

Vlasic, A; Šević, Dragutin M.; Rabasović, Maja S.; Križan, Janez; Savić-Šević, Svetlana N.; Rabasović, Mihailo D.; Mitrić, Miodrag; Marinković, Bratislav P.; Nikolić, Marko G.

(2018)

TY  - JOUR
AU  - Vlasic, A
AU  - Šević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Križan, Janez
AU  - Savić-Šević, Svetlana N.
AU  - Rabasović, Mihailo D.
AU  - Mitrić, Miodrag
AU  - Marinković, Bratislav P.
AU  - Nikolić, Marko G.
PY  - 2018
UR  - http://linkinghub.elsevier.com/retrieve/pii/S002223131731921X
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7625
AB  - In this paper we describe the synthesis and characterization of the Sr2CeO4:Eu3+ nanopowder and possibilities of its application for temperature and high pressure sensing. The material was prepared using simple solution combustion synthesis. X-ray powder diffraction (XRD), scanning electron microscope (SEM) and photoluminescence (PL) techniques have been used to confirm and characterize the prepared material. Time resolved analysis of emission spectra was achieved by using the streak camera system. Measured lifetime values of luminescence emission and the intensity ratios of spectral lines were used for determining the calibration curves for remote temperature sensing. We have analyzed sensitivity improvement of the intensity ratio method by using a temporal evolution of emission lines and simulation of delayed gating of one of them. Pressure effects on optical properties of Sr2CeO4: Eu3+ nanophosphor are also investigated.
T2  - Journal of Luminescence
T1  - Effects of temperature and pressure on luminescent properties of Sr 2 CeO 4: Eu3+ nanophosphor
VL  - 199
SP  - 285
EP  - 292
DO  - 10.1016/j.jlumin.2018.03.061
ER  - 
@article{
author = "Vlasic, A and Šević, Dragutin M. and Rabasović, Maja S. and Križan, Janez and Savić-Šević, Svetlana N. and Rabasović, Mihailo D. and Mitrić, Miodrag and Marinković, Bratislav P. and Nikolić, Marko G.",
year = "2018",
abstract = "In this paper we describe the synthesis and characterization of the Sr2CeO4:Eu3+ nanopowder and possibilities of its application for temperature and high pressure sensing. The material was prepared using simple solution combustion synthesis. X-ray powder diffraction (XRD), scanning electron microscope (SEM) and photoluminescence (PL) techniques have been used to confirm and characterize the prepared material. Time resolved analysis of emission spectra was achieved by using the streak camera system. Measured lifetime values of luminescence emission and the intensity ratios of spectral lines were used for determining the calibration curves for remote temperature sensing. We have analyzed sensitivity improvement of the intensity ratio method by using a temporal evolution of emission lines and simulation of delayed gating of one of them. Pressure effects on optical properties of Sr2CeO4: Eu3+ nanophosphor are also investigated.",
journal = "Journal of Luminescence",
title = "Effects of temperature and pressure on luminescent properties of Sr 2 CeO 4: Eu3+ nanophosphor",
volume = "199",
pages = "285-292",
doi = "10.1016/j.jlumin.2018.03.061"
}
Vlasic, A., Šević, D. M., Rabasović, M. S., Križan, J., Savić-Šević, S. N., Rabasović, M. D., Mitrić, M., Marinković, B. P.,& Nikolić, M. G.. (2018). Effects of temperature and pressure on luminescent properties of Sr 2 CeO 4: Eu3+ nanophosphor. in Journal of Luminescence, 199, 285-292.
https://doi.org/10.1016/j.jlumin.2018.03.061
Vlasic A, Šević DM, Rabasović MS, Križan J, Savić-Šević SN, Rabasović MD, Mitrić M, Marinković BP, Nikolić MG. Effects of temperature and pressure on luminescent properties of Sr 2 CeO 4: Eu3+ nanophosphor. in Journal of Luminescence. 2018;199:285-292.
doi:10.1016/j.jlumin.2018.03.061 .
Vlasic, A, Šević, Dragutin M., Rabasović, Maja S., Križan, Janez, Savić-Šević, Svetlana N., Rabasović, Mihailo D., Mitrić, Miodrag, Marinković, Bratislav P., Nikolić, Marko G., "Effects of temperature and pressure on luminescent properties of Sr 2 CeO 4: Eu3+ nanophosphor" in Journal of Luminescence, 199 (2018):285-292,
https://doi.org/10.1016/j.jlumin.2018.03.061 . .
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Laser irradiation of 10x(Ni/Ti)/Si multilayers at different wavelengths

Salatić, Branislav; Petrović, Suzana; Peruško, Davor; Čekada, Miha; Jelenković, Branislav; Pantelić, Dejan

(2016)

TY  - JOUR
AU  - Salatić, Branislav
AU  - Petrović, Suzana
AU  - Peruško, Davor
AU  - Čekada, Miha
AU  - Jelenković, Branislav
AU  - Pantelić, Dejan
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1108
AB  - A study of the effects of laser irradiation on the morphology and composition of Ni/Ti multilayers induced by nanosecond laser pulses at different wavelengths is reported. Irradiation of complex 109(Ni/Ti)/Si sample was done by a Nd:YAG laser which operate at a 1064 nm wavelength, frequency doubled wavelength (532 nm) and dual-wavelength (1064 and 532 nm). The following surface morphological changes were observed: (1) ablation of the thin film during the first laser pulse and (2) appearance of some nanostructures (mosaic structure) in the irradiated region. After action of one pulse, the boundary of damage area was relatively sharp at low pulse energy, whereas it was diffuse after irradiation with higher energy per pulse. The results obtained show that laser irradiation induced mixing between Ni and Ti layers which creates conditions for the formation of intermetallic compounds. A numerical model was used to predict ablation depths and temperatures inside the material during the time. The model prediction shows a close agreement with experimental data.
T2  - Optical and Quantum Electronics
T1  - Laser irradiation of 10x(Ni/Ti)/Si multilayers at different wavelengths
VL  - 48
IS  - 6
DO  - 10.1007/s11082-016-0503-4
ER  - 
@article{
author = "Salatić, Branislav and Petrović, Suzana and Peruško, Davor and Čekada, Miha and Jelenković, Branislav and Pantelić, Dejan",
year = "2016",
abstract = "A study of the effects of laser irradiation on the morphology and composition of Ni/Ti multilayers induced by nanosecond laser pulses at different wavelengths is reported. Irradiation of complex 109(Ni/Ti)/Si sample was done by a Nd:YAG laser which operate at a 1064 nm wavelength, frequency doubled wavelength (532 nm) and dual-wavelength (1064 and 532 nm). The following surface morphological changes were observed: (1) ablation of the thin film during the first laser pulse and (2) appearance of some nanostructures (mosaic structure) in the irradiated region. After action of one pulse, the boundary of damage area was relatively sharp at low pulse energy, whereas it was diffuse after irradiation with higher energy per pulse. The results obtained show that laser irradiation induced mixing between Ni and Ti layers which creates conditions for the formation of intermetallic compounds. A numerical model was used to predict ablation depths and temperatures inside the material during the time. The model prediction shows a close agreement with experimental data.",
journal = "Optical and Quantum Electronics",
title = "Laser irradiation of 10x(Ni/Ti)/Si multilayers at different wavelengths",
volume = "48",
number = "6",
doi = "10.1007/s11082-016-0503-4"
}
Salatić, B., Petrović, S., Peruško, D., Čekada, M., Jelenković, B.,& Pantelić, D.. (2016). Laser irradiation of 10x(Ni/Ti)/Si multilayers at different wavelengths. in Optical and Quantum Electronics, 48(6).
https://doi.org/10.1007/s11082-016-0503-4
Salatić B, Petrović S, Peruško D, Čekada M, Jelenković B, Pantelić D. Laser irradiation of 10x(Ni/Ti)/Si multilayers at different wavelengths. in Optical and Quantum Electronics. 2016;48(6).
doi:10.1007/s11082-016-0503-4 .
Salatić, Branislav, Petrović, Suzana, Peruško, Davor, Čekada, Miha, Jelenković, Branislav, Pantelić, Dejan, "Laser irradiation of 10x(Ni/Ti)/Si multilayers at different wavelengths" in Optical and Quantum Electronics, 48, no. 6 (2016),
https://doi.org/10.1007/s11082-016-0503-4 . .
1
1
1

Single- and dual-wavelength laser pulses induced modification in 10x(Al/Ti)/Si multilayer system

Salatić, Branislav; Petrović, Suzana; Peruško, Davor; Čekada, Miha; Panjan, Peter; Pantelić, Dejan; Jelenković, Branislav

(Elsevier, 2016)

TY  - JOUR
AU  - Salatić, Branislav
AU  - Petrović, Suzana
AU  - Peruško, Davor
AU  - Čekada, Miha
AU  - Panjan, Peter
AU  - Pantelić, Dejan
AU  - Jelenković, Branislav
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/858
AB  - The surface morphology of the ablation craters created in the multilayer 10x(Al/Ti)/Si system by nanosecond laser pulses at single- and dual wavelength has been studied experimentally and numerically. A complex multilayer thin film including ten (Al/Ti) bilayers deposited by ion sputtering on Si(1 0 0) substrate to a total thickness of 260 nm were illuminated at different laser irradiance in the range 0.25-3.5 x 10(9)W cm(-2). Single pulse laser irradiation was done at normal incidence in air, with the single wavelength, either at 532 nm or 1064 nm or with both laser light simultaneously in the ratio of 1: 10 for energy per pulse between second harmonic and 1064 nm. Most of the absorbed laser energy was rapidly transformed into heat, producing intensive modifications of composition and morphology on the sample surface. The results show an increase in surface roughness, formation of specific nanostructures, appearance of hydrodynamic features and ablation of surface material with crater formation. Applying a small fraction (10%) of the second harmonic in dual-wavelength pulses, a modification of the 10x(Al/Ti)/Si system by a single laser pulse was reflected in the formation of wider and/or deeper craters. Numerical calculations show that the main physical mechanism in ablation process is normal evaporation without phase explosion. The calculated and experimental results agree relatively well for the whole irradiance range, what makes the model applicable to complex Al/Ti multilayer systems. (C) 2015 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Applied Surface Science
T1  - Single- and dual-wavelength laser pulses induced modification in 10x(Al/Ti)/Si multilayer system
VL  - 360
SP  - 559
EP  - 565
DO  - 10.1016/j.apsusc.2015.10.203
ER  - 
@article{
author = "Salatić, Branislav and Petrović, Suzana and Peruško, Davor and Čekada, Miha and Panjan, Peter and Pantelić, Dejan and Jelenković, Branislav",
year = "2016",
abstract = "The surface morphology of the ablation craters created in the multilayer 10x(Al/Ti)/Si system by nanosecond laser pulses at single- and dual wavelength has been studied experimentally and numerically. A complex multilayer thin film including ten (Al/Ti) bilayers deposited by ion sputtering on Si(1 0 0) substrate to a total thickness of 260 nm were illuminated at different laser irradiance in the range 0.25-3.5 x 10(9)W cm(-2). Single pulse laser irradiation was done at normal incidence in air, with the single wavelength, either at 532 nm or 1064 nm or with both laser light simultaneously in the ratio of 1: 10 for energy per pulse between second harmonic and 1064 nm. Most of the absorbed laser energy was rapidly transformed into heat, producing intensive modifications of composition and morphology on the sample surface. The results show an increase in surface roughness, formation of specific nanostructures, appearance of hydrodynamic features and ablation of surface material with crater formation. Applying a small fraction (10%) of the second harmonic in dual-wavelength pulses, a modification of the 10x(Al/Ti)/Si system by a single laser pulse was reflected in the formation of wider and/or deeper craters. Numerical calculations show that the main physical mechanism in ablation process is normal evaporation without phase explosion. The calculated and experimental results agree relatively well for the whole irradiance range, what makes the model applicable to complex Al/Ti multilayer systems. (C) 2015 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "Single- and dual-wavelength laser pulses induced modification in 10x(Al/Ti)/Si multilayer system",
volume = "360",
pages = "559-565",
doi = "10.1016/j.apsusc.2015.10.203"
}
Salatić, B., Petrović, S., Peruško, D., Čekada, M., Panjan, P., Pantelić, D.,& Jelenković, B.. (2016). Single- and dual-wavelength laser pulses induced modification in 10x(Al/Ti)/Si multilayer system. in Applied Surface Science
Elsevier., 360, 559-565.
https://doi.org/10.1016/j.apsusc.2015.10.203
Salatić B, Petrović S, Peruško D, Čekada M, Panjan P, Pantelić D, Jelenković B. Single- and dual-wavelength laser pulses induced modification in 10x(Al/Ti)/Si multilayer system. in Applied Surface Science. 2016;360:559-565.
doi:10.1016/j.apsusc.2015.10.203 .
Salatić, Branislav, Petrović, Suzana, Peruško, Davor, Čekada, Miha, Panjan, Peter, Pantelić, Dejan, Jelenković, Branislav, "Single- and dual-wavelength laser pulses induced modification in 10x(Al/Ti)/Si multilayer system" in Applied Surface Science, 360 (2016):559-565,
https://doi.org/10.1016/j.apsusc.2015.10.203 . .
2
2
3

Luminescence thermometry via the two-dopant intensity ratio of Y2O3: Er3+, Eu3+

Rabasović, Mihailo D.; Murić, Branka D.; Celebonovic, Vladan; Mitrić, Miodrag; Jelenković, Branislav; Nikolic, Marko G.

(2016)

TY  - JOUR
AU  - Rabasović, Mihailo D.
AU  - Murić, Branka D.
AU  - Celebonovic, Vladan
AU  - Mitrić, Miodrag
AU  - Jelenković, Branislav
AU  - Nikolic, Marko G.
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1305
AB  - In this work we investigated the photoluminescence properties of Y2O3: Er3+, Eu3+ as a function of temperature and the possibility to use this material as a temperature sensor. Photoluminescence emission measurements with 532 nm laser excitation were recorded in the temperature range from 303 up to 573 K. The measured intensity ratio of erbium S-4(3/2) - GT I-4(15/ 2) and europium D-5(0) - GT F-7(2) emission lines was used for determination of the temperature calibration curve. These emission lines are intense, narrow and well defined. The distance between the lines, being 47 nm, can be easily measured even with a low-resolution spectrometer. The calculated relative sensitivity of the temperature sensor was 1.4% K-1 at 303 K, in the physiological temperature range, meaning that it could be successfully applied in biological studies.
T2  - Journal of Physics. D: Applied Physics
T1  - Luminescence thermometry via the two-dopant intensity ratio of Y2O3: Er3+, Eu3+
VL  - 49
IS  - 48
DO  - 10.1088/0022-3727/49/48/485104
ER  - 
@article{
author = "Rabasović, Mihailo D. and Murić, Branka D. and Celebonovic, Vladan and Mitrić, Miodrag and Jelenković, Branislav and Nikolic, Marko G.",
year = "2016",
abstract = "In this work we investigated the photoluminescence properties of Y2O3: Er3+, Eu3+ as a function of temperature and the possibility to use this material as a temperature sensor. Photoluminescence emission measurements with 532 nm laser excitation were recorded in the temperature range from 303 up to 573 K. The measured intensity ratio of erbium S-4(3/2) - GT I-4(15/ 2) and europium D-5(0) - GT F-7(2) emission lines was used for determination of the temperature calibration curve. These emission lines are intense, narrow and well defined. The distance between the lines, being 47 nm, can be easily measured even with a low-resolution spectrometer. The calculated relative sensitivity of the temperature sensor was 1.4% K-1 at 303 K, in the physiological temperature range, meaning that it could be successfully applied in biological studies.",
journal = "Journal of Physics. D: Applied Physics",
title = "Luminescence thermometry via the two-dopant intensity ratio of Y2O3: Er3+, Eu3+",
volume = "49",
number = "48",
doi = "10.1088/0022-3727/49/48/485104"
}
Rabasović, M. D., Murić, B. D., Celebonovic, V., Mitrić, M., Jelenković, B.,& Nikolic, M. G.. (2016). Luminescence thermometry via the two-dopant intensity ratio of Y2O3: Er3+, Eu3+. in Journal of Physics. D: Applied Physics, 49(48).
https://doi.org/10.1088/0022-3727/49/48/485104
Rabasović MD, Murić BD, Celebonovic V, Mitrić M, Jelenković B, Nikolic MG. Luminescence thermometry via the two-dopant intensity ratio of Y2O3: Er3+, Eu3+. in Journal of Physics. D: Applied Physics. 2016;49(48).
doi:10.1088/0022-3727/49/48/485104 .
Rabasović, Mihailo D., Murić, Branka D., Celebonovic, Vladan, Mitrić, Miodrag, Jelenković, Branislav, Nikolic, Marko G., "Luminescence thermometry via the two-dopant intensity ratio of Y2O3: Er3+, Eu3+" in Journal of Physics. D: Applied Physics, 49, no. 48 (2016),
https://doi.org/10.1088/0022-3727/49/48/485104 . .
15
13
13

Fast fabrication of large area concave microlens arrays

Murić, Branka; Grujić, Dušan; Milovanović, Dubravka S.; Pantelić, Dejan; Vasiljević, Darko; Jelenković, Branislav

(Society of Physical Chemists of Serbia, 2014)

TY  - CONF
AU  - Murić, Branka
AU  - Grujić, Dušan
AU  - Milovanović, Dubravka S.
AU  - Pantelić, Dejan
AU  - Vasiljević, Darko
AU  - Jelenković, Branislav
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9209
AB  - A single-step process for rapid fabrication of large-area concave microlens
arrays using a diode-pumped solid state (DPSS) laser operating at 473 nm is
developed. Using tartrazine sensitized gelatin layer treated with tot’hema -
mixture of iron (II)-, manganese (II)- and copper(II)gluconate- (denoted
short as tSTG) and a direct laser writing device developed in our laboratory,
we could produce 10 000 uniform microlens arrays within 30 min. Uniform
microlenses with different diameters and depth can be produced by varying
the laser power, exposure time and dye concentration.
PB  - Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Fast fabrication of large area concave microlens arrays
VL  - H-30-P
ER  - 
@conference{
author = "Murić, Branka and Grujić, Dušan and Milovanović, Dubravka S. and Pantelić, Dejan and Vasiljević, Darko and Jelenković, Branislav",
year = "2014",
abstract = "A single-step process for rapid fabrication of large-area concave microlens
arrays using a diode-pumped solid state (DPSS) laser operating at 473 nm is
developed. Using tartrazine sensitized gelatin layer treated with tot’hema -
mixture of iron (II)-, manganese (II)- and copper(II)gluconate- (denoted
short as tSTG) and a direct laser writing device developed in our laboratory,
we could produce 10 000 uniform microlens arrays within 30 min. Uniform
microlenses with different diameters and depth can be produced by varying
the laser power, exposure time and dye concentration.",
publisher = "Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Fast fabrication of large area concave microlens arrays",
volume = "H-30-P"
}
Murić, B., Grujić, D., Milovanović, D. S., Pantelić, D., Vasiljević, D.,& Jelenković, B.. (2014). Fast fabrication of large area concave microlens arrays. in PHYSICAL CHEMISTRY 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., H-30-P.
Murić B, Grujić D, Milovanović DS, Pantelić D, Vasiljević D, Jelenković B. Fast fabrication of large area concave microlens arrays. in PHYSICAL CHEMISTRY 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;H-30-P..
Murić, Branka, Grujić, Dušan, Milovanović, Dubravka S., Pantelić, Dejan, Vasiljević, Darko, Jelenković, Branislav, "Fast fabrication of large area concave microlens arrays" in PHYSICAL CHEMISTRY 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, H-30-P (2014).

Biomechanical model produced from light-activated dental composite resins: a holographic analysis

Pantelić, Dejan; Vasiljević, Darko; Blažić, Larisa; Savić-Šević, Svetlana N.; Murić, Branka; Nikolic, Marko

(2013)

TY  - JOUR
AU  - Pantelić, Dejan
AU  - Vasiljević, Darko
AU  - Blažić, Larisa
AU  - Savić-Šević, Svetlana N.
AU  - Murić, Branka
AU  - Nikolic, Marko
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7018
AB  - Light-activated dental composites, commonly applied in dentistry, can be used as excellent material for producing biomechanical models. They can be cast in almost any shape in an appropriate silicone mold and quickly solidified by irradiation with light in the blue part of the spectrum. In that way, it is possible to obtain any number of nearly identical casts. The models can be used to study the behavior of arbitrary structure under mechanical loads. To test the technique, a simple mechanical model of the tooth with a mesio-occluso-distal cavity was manufactured. Composite resin restoration was placed inside the cavity and light cured. Real-time holographic interferometry was used to analyze the contraction of the composite resin and its effect on the surrounding material. The results obtained in the holographic experiment were in good agreement with those obtained using the finite element method.
T2  - Physica Scripta
T1  - Biomechanical model produced from light-activated dental composite resins: a holographic analysis
VL  - T157
DO  - 10.1088/0031-8949/2013/T157/014021
ER  - 
@article{
author = "Pantelić, Dejan and Vasiljević, Darko and Blažić, Larisa and Savić-Šević, Svetlana N. and Murić, Branka and Nikolic, Marko",
year = "2013",
abstract = "Light-activated dental composites, commonly applied in dentistry, can be used as excellent material for producing biomechanical models. They can be cast in almost any shape in an appropriate silicone mold and quickly solidified by irradiation with light in the blue part of the spectrum. In that way, it is possible to obtain any number of nearly identical casts. The models can be used to study the behavior of arbitrary structure under mechanical loads. To test the technique, a simple mechanical model of the tooth with a mesio-occluso-distal cavity was manufactured. Composite resin restoration was placed inside the cavity and light cured. Real-time holographic interferometry was used to analyze the contraction of the composite resin and its effect on the surrounding material. The results obtained in the holographic experiment were in good agreement with those obtained using the finite element method.",
journal = "Physica Scripta",
title = "Biomechanical model produced from light-activated dental composite resins: a holographic analysis",
volume = "T157",
doi = "10.1088/0031-8949/2013/T157/014021"
}
Pantelić, D., Vasiljević, D., Blažić, L., Savić-Šević, S. N., Murić, B.,& Nikolic, M.. (2013). Biomechanical model produced from light-activated dental composite resins: a holographic analysis. in Physica Scripta, T157.
https://doi.org/10.1088/0031-8949/2013/T157/014021
Pantelić D, Vasiljević D, Blažić L, Savić-Šević SN, Murić B, Nikolic M. Biomechanical model produced from light-activated dental composite resins: a holographic analysis. in Physica Scripta. 2013;T157.
doi:10.1088/0031-8949/2013/T157/014021 .
Pantelić, Dejan, Vasiljević, Darko, Blažić, Larisa, Savić-Šević, Svetlana N., Murić, Branka, Nikolic, Marko, "Biomechanical model produced from light-activated dental composite resins: a holographic analysis" in Physica Scripta, T157 (2013),
https://doi.org/10.1088/0031-8949/2013/T157/014021 . .
1