TY  - JOUR
AU  - Knezević, Dragan
AU  - Dragović, Magdalena
AU  - Ibrahimović, Vedran
AU  - Srećković, Milesa
AU  - Kovacević, Aleksander
PY  - 2014
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/633
AB  - Remote tracking and recognition of various objects in defined space are complex multidisciplinary problems. Depending on selected scene being investigated (object size and dynamics, time needed for data processing and estimation), and on chosen optoelectronic system design, several solutions are available. For the fieldwork, the passive remote detection seems to be the most convenient. Economically reasonable approach with selected non-sophisticated modest equipment is proposed, evaluated and discussed. A numerical experiment is performed with own-developed algorithm in which unreal cases are automatically eliminated during the output vector data evaluation. Gaussian distribution method is implemented here. The average calculated times, resulted from simulation, were shorter than simulated values increased by 3 sigma.
PB  - National Institute of Science Communication and Information Resources (NISCAIR)
T2  - Indian Journal of Pure & Applied Physics
T1  - Numerical complexity of real-time tracking of objects in defined space by infrared optoelectronic devices
EP  - 464
IS  - 7
SP  - 457
VL  - 52
UR  - https://hdl.handle.net/21.15107/rcub_grafar_633
ER  - 

@article{
author = "Knezević, Dragan and Dragović, Magdalena and Ibrahimović, Vedran and Srećković, Milesa and Kovacević, Aleksander",
year = "2014",
abstract = "Remote tracking and recognition of various objects in defined space are complex multidisciplinary problems. Depending on selected scene being investigated (object size and dynamics, time needed for data processing and estimation), and on chosen optoelectronic system design, several solutions are available. For the fieldwork, the passive remote detection seems to be the most convenient. Economically reasonable approach with selected non-sophisticated modest equipment is proposed, evaluated and discussed. A numerical experiment is performed with own-developed algorithm in which unreal cases are automatically eliminated during the output vector data evaluation. Gaussian distribution method is implemented here. The average calculated times, resulted from simulation, were shorter than simulated values increased by 3 sigma.",
publisher = "National Institute of Science Communication and Information Resources (NISCAIR)",
journal = "Indian Journal of Pure & Applied Physics",
title = "Numerical complexity of real-time tracking of objects in defined space by infrared optoelectronic devices",
pages = "464-457",
number = "7",
volume = "52",
url = "https://hdl.handle.net/21.15107/rcub_grafar_633"
}

Knezević, D., Dragović, M., Ibrahimović, V., Srećković, M.,& Kovacević, A.. (2014). Numerical complexity of real-time tracking of objects in defined space by infrared optoelectronic devices. in Indian Journal of Pure & Applied Physics
National Institute of Science Communication and Information Resources (NISCAIR)., 52(7), 457-464.
https://hdl.handle.net/21.15107/rcub_grafar_633

Knezević D, Dragović M, Ibrahimović V, Srećković M, Kovacević A. Numerical complexity of real-time tracking of objects in defined space by infrared optoelectronic devices. in Indian Journal of Pure & Applied Physics. 2014;52(7):457-464.
https://hdl.handle.net/21.15107/rcub_grafar_633 .

Knezević, Dragan, Dragović, Magdalena, Ibrahimović, Vedran, Srećković, Milesa, Kovacević, Aleksander, "Numerical complexity of real-time tracking of objects in defined space by infrared optoelectronic devices" in Indian Journal of Pure & Applied Physics, 52, no. 7 (2014):457-464,
https://hdl.handle.net/21.15107/rcub_grafar_633 .

TY  - JOUR
AU  - Sanz, Angel S.
AU  - Davidović, Milena
AU  - Božić, Mirjana
AU  - Miret-Artes, Salvador
PY  - 2010
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/294
AB  - Bohmian mechanics allows to visualize and understand the quantum-mechanical behavior of massive particles in terms of trajectories. As shown by Bialynicki-Birula, Electromagnetism also admits a hydrodynamical formulation when the existence of a wave function for photons (properly defined) is assumed. This formulation thus provides an alternative interpretation of optical phenomena in terms of photon trajectories, whose flow yields a pictorial view of the evolution of the electromagnetic energy density in configuration space. This trajectory-based theoretical framework is considered here to study and analyze the outcome from Young-type diffraction experiments within the context of the Arago-Fresnel laws. More specifically, photon trajectories in the region behind the two slits are obtained in the case where the slits are illuminated by a polarized monochromatic plane wave. Expressions to determine electromagnetic energy flow lines and photon trajectories within this scenario are provided, as well as a procedure to compute them in the particular case of gratings totally transparent inside the slits and completely absorbing outside them. As is shown, the electromagnetic energy flow lines obtained allow to monitor at each point of space the behavior of the electromagnetic energy flow and, therefore, to evaluate the effects caused on it by the presence (right behind each slit) of polarizers with the same or different polarization axes. This leads to a trajectory-based picture of the Arago-Fresnel laws for the interference of polarized light.
T2  - Annals of Physics
T1  - Understanding interference experiments with polarized light through photon trajectories
EP  - 784
IS  - 4
SP  - 763
VL  - 325
DO  - 10.1016/j.aop.2009.12.005
ER  - 

@article{
author = "Sanz, Angel S. and Davidović, Milena and Božić, Mirjana and Miret-Artes, Salvador",
year = "2010",
abstract = "Bohmian mechanics allows to visualize and understand the quantum-mechanical behavior of massive particles in terms of trajectories. As shown by Bialynicki-Birula, Electromagnetism also admits a hydrodynamical formulation when the existence of a wave function for photons (properly defined) is assumed. This formulation thus provides an alternative interpretation of optical phenomena in terms of photon trajectories, whose flow yields a pictorial view of the evolution of the electromagnetic energy density in configuration space. This trajectory-based theoretical framework is considered here to study and analyze the outcome from Young-type diffraction experiments within the context of the Arago-Fresnel laws. More specifically, photon trajectories in the region behind the two slits are obtained in the case where the slits are illuminated by a polarized monochromatic plane wave. Expressions to determine electromagnetic energy flow lines and photon trajectories within this scenario are provided, as well as a procedure to compute them in the particular case of gratings totally transparent inside the slits and completely absorbing outside them. As is shown, the electromagnetic energy flow lines obtained allow to monitor at each point of space the behavior of the electromagnetic energy flow and, therefore, to evaluate the effects caused on it by the presence (right behind each slit) of polarizers with the same or different polarization axes. This leads to a trajectory-based picture of the Arago-Fresnel laws for the interference of polarized light.",
journal = "Annals of Physics",
title = "Understanding interference experiments with polarized light through photon trajectories",
pages = "784-763",
number = "4",
volume = "325",
doi = "10.1016/j.aop.2009.12.005"
}

Sanz, A. S., Davidović, M., Božić, M.,& Miret-Artes, S.. (2010). Understanding interference experiments with polarized light through photon trajectories. in Annals of Physics, 325(4), 763-784.
https://doi.org/10.1016/j.aop.2009.12.005

Sanz AS, Davidović M, Božić M, Miret-Artes S. Understanding interference experiments with polarized light through photon trajectories. in Annals of Physics. 2010;325(4):763-784.
doi:10.1016/j.aop.2009.12.005 .

Sanz, Angel S., Davidović, Milena, Božić, Mirjana, Miret-Artes, Salvador, "Understanding interference experiments with polarized light through photon trajectories" in Annals of Physics, 325, no. 4 (2010):763-784,
https://doi.org/10.1016/j.aop.2009.12.005 . .

TY  - JOUR
AU  - Božić, Mirjana
AU  - Davidović, Milena
AU  - Dimitrova, Teodara L.
AU  - Miret-Artes, Salvador
AU  - Sanz, Angel S.
AU  - Weis, Antoine
PY  - 2010
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/297
AB  - We study experimentally and theoretically the influence of light polarization on the interference patterns behind a diffracting grating. Different states of polarization and configurations are considered. The experiments are analyzed in terms of electromagnetic energy (EME) flow lines, which can be eventually identified with the paths followed by photons. This gives rise to a novel trajectory interpretation of the Arago-Fresnel laws for polarized light, which we compare with interpretations based on the concept of "which-way" (or "which-slit") information.
T2  - Journal of Russian Laser Research
T1  - Generalized arago-fresnel laws: the eme-flow-line description
EP  - 128
IS  - 2
SP  - 117
VL  - 31
DO  - 10.1007/s10946-010-9131-9
ER  - 

@article{
author = "Božić, Mirjana and Davidović, Milena and Dimitrova, Teodara L. and Miret-Artes, Salvador and Sanz, Angel S. and Weis, Antoine",
year = "2010",
abstract = "We study experimentally and theoretically the influence of light polarization on the interference patterns behind a diffracting grating. Different states of polarization and configurations are considered. The experiments are analyzed in terms of electromagnetic energy (EME) flow lines, which can be eventually identified with the paths followed by photons. This gives rise to a novel trajectory interpretation of the Arago-Fresnel laws for polarized light, which we compare with interpretations based on the concept of "which-way" (or "which-slit") information.",
journal = "Journal of Russian Laser Research",
title = "Generalized arago-fresnel laws: the eme-flow-line description",
pages = "128-117",
number = "2",
volume = "31",
doi = "10.1007/s10946-010-9131-9"
}

Božić, M., Davidović, M., Dimitrova, T. L., Miret-Artes, S., Sanz, A. S.,& Weis, A.. (2010). Generalized arago-fresnel laws: the eme-flow-line description. in Journal of Russian Laser Research, 31(2), 117-128.
https://doi.org/10.1007/s10946-010-9131-9

Božić M, Davidović M, Dimitrova TL, Miret-Artes S, Sanz AS, Weis A. Generalized arago-fresnel laws: the eme-flow-line description. in Journal of Russian Laser Research. 2010;31(2):117-128.
doi:10.1007/s10946-010-9131-9 .

Božić, Mirjana, Davidović, Milena, Dimitrova, Teodara L., Miret-Artes, Salvador, Sanz, Angel S., Weis, Antoine, "Generalized arago-fresnel laws: the eme-flow-line description" in Journal of Russian Laser Research, 31, no. 2 (2010):117-128,
https://doi.org/10.1007/s10946-010-9131-9 . .

TY  - JOUR
AU  - Božić, Mirjana
AU  - Arsenović, Dušan
AU  - Sanz, Angel S.
AU  - Davidović, Milena
PY  - 2010
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/286
AB  - Here, the influence of resonance photon-atom scattering on the atom interference pattern at the exit of a three-grating Mach-Zehnder interferometer is studied. It is assumed that the scattering process does not destroy the atomic wave function describing the state of the atom before the scattering process takes place, but only induces a certain shift and change of its phase. We find that the visibility of the interference strongly depends on the statistical distribution of transferred momenta to the atom during the photon-atom scattering event. This also explains the experimentally observed (Chapman et al 1995 Phys. Rev. Lett. 75 2783) dependence of the visibility on the ratio d(p)/lambda(i) = y'(12)(2 pi/kd lambda(i)), where y'(12) is the distance between the place where the scattering event occurs and the first grating, k is the wave number of the atomic centre-of-mass motion, d is the grating constant and lambda(i) is the photon wavelength. Furthermore, it is remarkable that photon-atom scattering events happen experimentally within the Fresnel region, i.e. the near-field region, associated with the first grating, which should be taken into account when drawing conclusions about the relevance of 'which-way' information for the interference visibility.
T2  - Physica Scripta
T1  - On the influence of resonance photon scattering on atom interference
SP  - 014017
VL  - T140
DO  - 10.1088/0031-8949/2010/T140/014017
ER  - 

@article{
author = "Božić, Mirjana and Arsenović, Dušan and Sanz, Angel S. and Davidović, Milena",
year = "2010",
abstract = "Here, the influence of resonance photon-atom scattering on the atom interference pattern at the exit of a three-grating Mach-Zehnder interferometer is studied. It is assumed that the scattering process does not destroy the atomic wave function describing the state of the atom before the scattering process takes place, but only induces a certain shift and change of its phase. We find that the visibility of the interference strongly depends on the statistical distribution of transferred momenta to the atom during the photon-atom scattering event. This also explains the experimentally observed (Chapman et al 1995 Phys. Rev. Lett. 75 2783) dependence of the visibility on the ratio d(p)/lambda(i) = y'(12)(2 pi/kd lambda(i)), where y'(12) is the distance between the place where the scattering event occurs and the first grating, k is the wave number of the atomic centre-of-mass motion, d is the grating constant and lambda(i) is the photon wavelength. Furthermore, it is remarkable that photon-atom scattering events happen experimentally within the Fresnel region, i.e. the near-field region, associated with the first grating, which should be taken into account when drawing conclusions about the relevance of 'which-way' information for the interference visibility.",
journal = "Physica Scripta",
title = "On the influence of resonance photon scattering on atom interference",
pages = "014017",
volume = "T140",
doi = "10.1088/0031-8949/2010/T140/014017"
}

Božić, M., Arsenović, D., Sanz, A. S.,& Davidović, M.. (2010). On the influence of resonance photon scattering on atom interference. in Physica Scripta, T140, 014017.
https://doi.org/10.1088/0031-8949/2010/T140/014017

Božić M, Arsenović D, Sanz AS, Davidović M. On the influence of resonance photon scattering on atom interference. in Physica Scripta. 2010;T140:014017.
doi:10.1088/0031-8949/2010/T140/014017 .

Božić, Mirjana, Arsenović, Dušan, Sanz, Angel S., Davidović, Milena, "On the influence of resonance photon scattering on atom interference" in Physica Scripta, T140 (2010):014017,
https://doi.org/10.1088/0031-8949/2010/T140/014017 . .

TY  - JOUR
AU  - Božić, Mirjana
AU  - Arsenović, Dušan
AU  - Sanz, Angel S.
AU  - Davidović, Milena
PY  - 2010
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1862
AB  - Here, the influence of resonance photon-atom scattering on the atom interference pattern at the exit of a three-grating Mach-Zehnder interferometer is studied. It is assumed that the scattering process does not destroy the atomic wave function describing the state of the atom before the scattering process takes place, but only induces a certain shift and change of its phase. We find that the visibility of the interference strongly depends on the statistical distribution of transferred momenta to the atom during the photon-atom scattering event. This also explains the experimentally observed (Chapman et al 1995 Phys. Rev. Lett. 75 2783) dependence of the visibility on the ratio d(p)/lambda(i) = y'(12)(2 pi/kd lambda(i)), where y'(12) is the distance between the place where the scattering event occurs and the first grating, k is the wave number of the atomic centre-of-mass motion, d is the grating constant and lambda(i) is the photon wavelength. Furthermore, it is remarkable that photon-atom scattering events happen experimentally within the Fresnel region, i.e. the near-field region, associated with the first grating, which should be taken into account when drawing conclusions about the relevance of 'which-way' information for the interference visibility.
T2  - Physica Scripta
T1  - On the influence of resonance photon scattering on atom interference
DO  - 10.1088/0031-8949/2010/T140/014017
ER  - 

@article{
author = "Božić, Mirjana and Arsenović, Dušan and Sanz, Angel S. and Davidović, Milena",
year = "2010",
abstract = "Here, the influence of resonance photon-atom scattering on the atom interference pattern at the exit of a three-grating Mach-Zehnder interferometer is studied. It is assumed that the scattering process does not destroy the atomic wave function describing the state of the atom before the scattering process takes place, but only induces a certain shift and change of its phase. We find that the visibility of the interference strongly depends on the statistical distribution of transferred momenta to the atom during the photon-atom scattering event. This also explains the experimentally observed (Chapman et al 1995 Phys. Rev. Lett. 75 2783) dependence of the visibility on the ratio d(p)/lambda(i) = y'(12)(2 pi/kd lambda(i)), where y'(12) is the distance between the place where the scattering event occurs and the first grating, k is the wave number of the atomic centre-of-mass motion, d is the grating constant and lambda(i) is the photon wavelength. Furthermore, it is remarkable that photon-atom scattering events happen experimentally within the Fresnel region, i.e. the near-field region, associated with the first grating, which should be taken into account when drawing conclusions about the relevance of 'which-way' information for the interference visibility.",
journal = "Physica Scripta",
title = "On the influence of resonance photon scattering on atom interference",
doi = "10.1088/0031-8949/2010/T140/014017"
}

Božić, M., Arsenović, D., Sanz, A. S.,& Davidović, M.. (2010). On the influence of resonance photon scattering on atom interference. in Physica Scripta.
https://doi.org/10.1088/0031-8949/2010/T140/014017

Božić M, Arsenović D, Sanz AS, Davidović M. On the influence of resonance photon scattering on atom interference. in Physica Scripta. 2010;.
doi:10.1088/0031-8949/2010/T140/014017 .

Božić, Mirjana, Arsenović, Dušan, Sanz, Angel S., Davidović, Milena, "On the influence of resonance photon scattering on atom interference" in Physica Scripta (2010),
https://doi.org/10.1088/0031-8949/2010/T140/014017 . .

TY  - JOUR
AU  - Arsenović, Dušan
AU  - Božić, Mirjana
AU  - Sanz, Angel S.
AU  - Davidović, Milena
PY  - 2009
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/220
AB  - In 1995, Chapman et al (1995 Phys. Rev. Lett. 75 2783) showed experimentally that the interference contrast in a three-grating atom interferometer does not vanish in the presence of scattering events with photons, as required by the complementarity principle. In this work, we present an analytical study of this experiment by determining the evolution of an atom's wave function along the three-grating Mach-Zehnder interferometer under the assumption that the atom is hit by a photon after passing through the first grating. The consideration of a transverse wave function in momentum representation is essential in this study. As is shown, the number of atoms transmitted through the third grating is given by a simple periodic function of the lateral shift along this grating, both in the absence and in the presence of photon scattering. Moreover, the relative contrast (laser on/laser off) is shown to be a simple analytical function of the ratio d(p)/lambda(i), where d(p) is the distance between atomic paths at the scattering locus and lambda(i) the scattered photon wavelength. We argue that this dependence, being in agreement with experimental results, can be considered as showing compatibility between the wave and corpuscle properties of atoms.
T2  - Physica Scripta
T1  - Evolution of the wave function of an atom hit by a photon in a three-grating interferometer
DO  - 10.1088/0031-8949/2009/135/014025
ER  - 

@article{
author = "Arsenović, Dušan and Božić, Mirjana and Sanz, Angel S. and Davidović, Milena",
year = "2009",
abstract = "In 1995, Chapman et al (1995 Phys. Rev. Lett. 75 2783) showed experimentally that the interference contrast in a three-grating atom interferometer does not vanish in the presence of scattering events with photons, as required by the complementarity principle. In this work, we present an analytical study of this experiment by determining the evolution of an atom's wave function along the three-grating Mach-Zehnder interferometer under the assumption that the atom is hit by a photon after passing through the first grating. The consideration of a transverse wave function in momentum representation is essential in this study. As is shown, the number of atoms transmitted through the third grating is given by a simple periodic function of the lateral shift along this grating, both in the absence and in the presence of photon scattering. Moreover, the relative contrast (laser on/laser off) is shown to be a simple analytical function of the ratio d(p)/lambda(i), where d(p) is the distance between atomic paths at the scattering locus and lambda(i) the scattered photon wavelength. We argue that this dependence, being in agreement with experimental results, can be considered as showing compatibility between the wave and corpuscle properties of atoms.",
journal = "Physica Scripta",
title = "Evolution of the wave function of an atom hit by a photon in a three-grating interferometer",
doi = "10.1088/0031-8949/2009/135/014025"
}

Arsenović, D., Božić, M., Sanz, A. S.,& Davidović, M.. (2009). Evolution of the wave function of an atom hit by a photon in a three-grating interferometer. in Physica Scripta.
https://doi.org/10.1088/0031-8949/2009/135/014025

Arsenović D, Božić M, Sanz AS, Davidović M. Evolution of the wave function of an atom hit by a photon in a three-grating interferometer. in Physica Scripta. 2009;.
doi:10.1088/0031-8949/2009/135/014025 .

Arsenović, Dušan, Božić, Mirjana, Sanz, Angel S., Davidović, Milena, "Evolution of the wave function of an atom hit by a photon in a three-grating interferometer" in Physica Scripta (2009),
https://doi.org/10.1088/0031-8949/2009/135/014025 . .

TY  - JOUR
AU  - Davidović, Ljubica D.
AU  - Arsenović, Dušan
AU  - Davidović, Milena
AU  - Davidović, Dragomir M.
PY  - 2009
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/269
AB  - Using the resolution of identity spanned by coherent states of the harmonic oscillator, any entire function of the creation and the annihilation operators and its action on a vector in Hilbert space can be defined directly and simply. We show that such a direct approach applied to non-entire functions ln (a) over cap and ln (a) over cap (dagger), present in the literature, may lead to errors and contradictions. We elucidate their roots and propose a way to avoid them. We discuss the obtained results.
T2  - Journal of Physics A-Mathematical and Theoretical
T1  - Subtle inconsistencies in the straightforward definition of the logarithmic function of annihilation and creation operators and a way to avoid them
IS  - 23
VL  - 42
DO  - 10.1088/1751-8113/42/23/235302
ER  - 

@article{
author = "Davidović, Ljubica D. and Arsenović, Dušan and Davidović, Milena and Davidović, Dragomir M.",
year = "2009",
abstract = "Using the resolution of identity spanned by coherent states of the harmonic oscillator, any entire function of the creation and the annihilation operators and its action on a vector in Hilbert space can be defined directly and simply. We show that such a direct approach applied to non-entire functions ln (a) over cap and ln (a) over cap (dagger), present in the literature, may lead to errors and contradictions. We elucidate their roots and propose a way to avoid them. We discuss the obtained results.",
journal = "Journal of Physics A-Mathematical and Theoretical",
title = "Subtle inconsistencies in the straightforward definition of the logarithmic function of annihilation and creation operators and a way to avoid them",
number = "23",
volume = "42",
doi = "10.1088/1751-8113/42/23/235302"
}

Davidović, L. D., Arsenović, D., Davidović, M.,& Davidović, D. M.. (2009). Subtle inconsistencies in the straightforward definition of the logarithmic function of annihilation and creation operators and a way to avoid them. in Journal of Physics A-Mathematical and Theoretical, 42(23).
https://doi.org/10.1088/1751-8113/42/23/235302

Davidović LD, Arsenović D, Davidović M, Davidović DM. Subtle inconsistencies in the straightforward definition of the logarithmic function of annihilation and creation operators and a way to avoid them. in Journal of Physics A-Mathematical and Theoretical. 2009;42(23).
doi:10.1088/1751-8113/42/23/235302 .

Davidović, Ljubica D., Arsenović, Dušan, Davidović, Milena, Davidović, Dragomir M., "Subtle inconsistencies in the straightforward definition of the logarithmic function of annihilation and creation operators and a way to avoid them" in Journal of Physics A-Mathematical and Theoretical, 42, no. 23 (2009),
https://doi.org/10.1088/1751-8113/42/23/235302 . .

TY  - JOUR
AU  - Davidović, Milos D.
AU  - Davidović, Milena
PY  - 2009
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/239
AB  - To better elucidate the essential energy transmission Mechanism in the most common, typical waveguides, the electromagnetic energy flow lines for a planar optical slab waveguide and a microwave rectangular waveguide are constructed. The obtained results supply more direct and transparent insight into the distribution of electromagnetic energy in the modes of various character.
T2  - Acta Physica Polonica A
T1  - Mode Analysis of the Optical and the Microwave Waveguides Using Electromagnetic Energy Flow Lines
EP  - 674
IS  - 4
SP  - 672
VL  - 116
UR  - https://hdl.handle.net/21.15107/rcub_grafar_239
ER  - 

@article{
author = "Davidović, Milos D. and Davidović, Milena",
year = "2009",
abstract = "To better elucidate the essential energy transmission Mechanism in the most common, typical waveguides, the electromagnetic energy flow lines for a planar optical slab waveguide and a microwave rectangular waveguide are constructed. The obtained results supply more direct and transparent insight into the distribution of electromagnetic energy in the modes of various character.",
journal = "Acta Physica Polonica A",
title = "Mode Analysis of the Optical and the Microwave Waveguides Using Electromagnetic Energy Flow Lines",
pages = "674-672",
number = "4",
volume = "116",
url = "https://hdl.handle.net/21.15107/rcub_grafar_239"
}

Davidović, M. D.,& Davidović, M.. (2009). Mode Analysis of the Optical and the Microwave Waveguides Using Electromagnetic Energy Flow Lines. in Acta Physica Polonica A, 116(4), 672-674.
https://hdl.handle.net/21.15107/rcub_grafar_239

Davidović MD, Davidović M. Mode Analysis of the Optical and the Microwave Waveguides Using Electromagnetic Energy Flow Lines. in Acta Physica Polonica A. 2009;116(4):672-674.
https://hdl.handle.net/21.15107/rcub_grafar_239 .

Davidović, Milos D., Davidović, Milena, "Mode Analysis of the Optical and the Microwave Waveguides Using Electromagnetic Energy Flow Lines" in Acta Physica Polonica A, 116, no. 4 (2009):672-674,
https://hdl.handle.net/21.15107/rcub_grafar_239 .

TY  - JOUR
AU  - Davidović, Milos D.
AU  - Davidović, Milena
AU  - Vojisavljević, Vuk
PY  - 2009
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/237
AB  - Time-frequency analysis is important to identify the localized information of a non-stationary signal in the time and frequency domains simultaneously. There are few different time-frequency analysis methods available with their own specialty and suitability. In quantum mechanics Husimi function of any quantum mechanical state arises naturally whenever the simultaneous measurement of both coordinate and momentum is performed on this state with maximal accuracy allowed by the Heisenberg uncertainty relations. The Husimi function is a probability distribution for the statistics of simultaneous unsharp measurement of both coordinate and momentum. In general, like the Wigner function, the Husimi function can be defined in the space of any pair of conjugate variables. In particular, in the studies of signal processing, this space is the time-frequency space. In the present work we consider the Husimi function in this space, and apply it to analyse the multicomponent signals. The time-frequency representations of the simulated signals by using the Husimi distribution clearly show the frequency features along the time axis. The results are encouraging and indicate that, like in corresponding analogous problems in quantum mechanics, the Husimi distribution approach in the time-frequency analysis for non-stationary optical signals may provide some insights which are not so easily obtained in other, more spread approaches.
PB  - Polish Academy of Sciences
T2  - Acta Physica Polonica A
T1  - Time-Frequency Analysis of Nonstationary Optical Signals Using Husimi Type Function
EP  - 677
IS  - 4
SP  - 675
VL  - 116
DO  - 10.12693/APhysPolA.116.675
ER  - 

@article{
author = "Davidović, Milos D. and Davidović, Milena and Vojisavljević, Vuk",
year = "2009",
abstract = "Time-frequency analysis is important to identify the localized information of a non-stationary signal in the time and frequency domains simultaneously. There are few different time-frequency analysis methods available with their own specialty and suitability. In quantum mechanics Husimi function of any quantum mechanical state arises naturally whenever the simultaneous measurement of both coordinate and momentum is performed on this state with maximal accuracy allowed by the Heisenberg uncertainty relations. The Husimi function is a probability distribution for the statistics of simultaneous unsharp measurement of both coordinate and momentum. In general, like the Wigner function, the Husimi function can be defined in the space of any pair of conjugate variables. In particular, in the studies of signal processing, this space is the time-frequency space. In the present work we consider the Husimi function in this space, and apply it to analyse the multicomponent signals. The time-frequency representations of the simulated signals by using the Husimi distribution clearly show the frequency features along the time axis. The results are encouraging and indicate that, like in corresponding analogous problems in quantum mechanics, the Husimi distribution approach in the time-frequency analysis for non-stationary optical signals may provide some insights which are not so easily obtained in other, more spread approaches.",
publisher = "Polish Academy of Sciences",
journal = "Acta Physica Polonica A",
title = "Time-Frequency Analysis of Nonstationary Optical Signals Using Husimi Type Function",
pages = "677-675",
number = "4",
volume = "116",
doi = "10.12693/APhysPolA.116.675"
}

Davidović, M. D., Davidović, M.,& Vojisavljević, V.. (2009). Time-Frequency Analysis of Nonstationary Optical Signals Using Husimi Type Function. in Acta Physica Polonica A
Polish Academy of Sciences., 116(4), 675-677.
https://doi.org/10.12693/APhysPolA.116.675

Davidović MD, Davidović M, Vojisavljević V. Time-Frequency Analysis of Nonstationary Optical Signals Using Husimi Type Function. in Acta Physica Polonica A. 2009;116(4):675-677.
doi:10.12693/APhysPolA.116.675 .

Davidović, Milos D., Davidović, Milena, Vojisavljević, Vuk, "Time-Frequency Analysis of Nonstationary Optical Signals Using Husimi Type Function" in Acta Physica Polonica A, 116, no. 4 (2009):675-677,
https://doi.org/10.12693/APhysPolA.116.675 . .

TY  - JOUR
AU  - Davidović, Milena
AU  - Sanz, Angel S.
AU  - Arsenović, Dušan
AU  - Božić, Mirjana
AU  - Miret-Artes, Salvador
PY  - 2009
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/221
AB  - Motivated by recent experiments where interference patterns behind a grating are obtained by accumulating single photon events, we provide here an electromagnetic energy flow-line description to explain the emergence of such patterns. We find and discuss an analogy between the equation describing these energy flow lines and the equation of Bohmian trajectories used to describe the motion of massive particles.
T2  - Physica Scripta
T1  - Electromagnetic energy flow lines as possible paths of photons
DO  - 10.1088/0031-8949/2009/T135/014009
ER  - 

@article{
author = "Davidović, Milena and Sanz, Angel S. and Arsenović, Dušan and Božić, Mirjana and Miret-Artes, Salvador",
year = "2009",
abstract = "Motivated by recent experiments where interference patterns behind a grating are obtained by accumulating single photon events, we provide here an electromagnetic energy flow-line description to explain the emergence of such patterns. We find and discuss an analogy between the equation describing these energy flow lines and the equation of Bohmian trajectories used to describe the motion of massive particles.",
journal = "Physica Scripta",
title = "Electromagnetic energy flow lines as possible paths of photons",
doi = "10.1088/0031-8949/2009/T135/014009"
}

Davidović, M., Sanz, A. S., Arsenović, D., Božić, M.,& Miret-Artes, S.. (2009). Electromagnetic energy flow lines as possible paths of photons. in Physica Scripta.
https://doi.org/10.1088/0031-8949/2009/T135/014009

Davidović M, Sanz AS, Arsenović D, Božić M, Miret-Artes S. Electromagnetic energy flow lines as possible paths of photons. in Physica Scripta. 2009;.
doi:10.1088/0031-8949/2009/T135/014009 .

Davidović, Milena, Sanz, Angel S., Arsenović, Dušan, Božić, Mirjana, Miret-Artes, Salvador, "Electromagnetic energy flow lines as possible paths of photons" in Physica Scripta (2009),
https://doi.org/10.1088/0031-8949/2009/T135/014009 . .

TY  - JOUR
AU  - Božić, Mirjana
AU  - Dimić, Dragan
AU  - Davidović, Milena
PY  - 2009
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/216
AB  - The wide use of beam splitters in quantum interferometry, attosecond metrology, modern quantum information processing, foundations of quantum mechanics, has been based on coherence of beams emerging from a beam splitter. Here we further develop the approach in which a beam splitter is regarded as a transformer of an incident wave field (photon field or matter wave field) into a field which has narrow maxima at the points along and in close vicinity of two or more particular lines. This description was derived by considering a thin grating as a model of a beam splitter for photons, atoms and molecules. It is applied to answer some questions raised in the discussions on the interpretation of wave particle duality.
PB  - Polish Academy of Sciences
T2  - Acta Physica Polonica A
T1  - Coherent Beam Splitting by a Thin Grating
EP  - 482
IS  - 4
SP  - 479
VL  - 116
DO  - 10.12693/APhysPolA.116.479
ER  - 

@article{
author = "Božić, Mirjana and Dimić, Dragan and Davidović, Milena",
year = "2009",
abstract = "The wide use of beam splitters in quantum interferometry, attosecond metrology, modern quantum information processing, foundations of quantum mechanics, has been based on coherence of beams emerging from a beam splitter. Here we further develop the approach in which a beam splitter is regarded as a transformer of an incident wave field (photon field or matter wave field) into a field which has narrow maxima at the points along and in close vicinity of two or more particular lines. This description was derived by considering a thin grating as a model of a beam splitter for photons, atoms and molecules. It is applied to answer some questions raised in the discussions on the interpretation of wave particle duality.",
publisher = "Polish Academy of Sciences",
journal = "Acta Physica Polonica A",
title = "Coherent Beam Splitting by a Thin Grating",
pages = "482-479",
number = "4",
volume = "116",
doi = "10.12693/APhysPolA.116.479"
}

Božić, M., Dimić, D.,& Davidović, M.. (2009). Coherent Beam Splitting by a Thin Grating. in Acta Physica Polonica A
Polish Academy of Sciences., 116(4), 479-482.
https://doi.org/10.12693/APhysPolA.116.479

Božić M, Dimić D, Davidović M. Coherent Beam Splitting by a Thin Grating. in Acta Physica Polonica A. 2009;116(4):479-482.
doi:10.12693/APhysPolA.116.479 .

Božić, Mirjana, Dimić, Dragan, Davidović, Milena, "Coherent Beam Splitting by a Thin Grating" in Acta Physica Polonica A, 116, no. 4 (2009):479-482,
https://doi.org/10.12693/APhysPolA.116.479 . .

TY  - JOUR
AU  - Davidović, Milena
AU  - Arsenović, Dušan
AU  - Božić, Mirjana
AU  - Sanz, Angel S.
AU  - Miret-Artes, Salvador
PY  - 2008
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/187
AB  - The momentum distributions associated with both the wave function of a particle behind a grating and the corresponding Bohmian trajectories are investigated and compared. Near the grating, it is observed that the former does not depend on the distance from the grating, while the latter changes with this distance. However, as one moves further apart from the grating, in the far field, both distributions become identical.
T2  - European Physical Journal-Special Topics
T1  - Should particle trajectories comply with the transverse momentum distribution?
EP  - 104
SP  - 95
VL  - 160
DO  - 10.1140/epjst/e2008-00713-0
ER  - 

@article{
author = "Davidović, Milena and Arsenović, Dušan and Božić, Mirjana and Sanz, Angel S. and Miret-Artes, Salvador",
year = "2008",
abstract = "The momentum distributions associated with both the wave function of a particle behind a grating and the corresponding Bohmian trajectories are investigated and compared. Near the grating, it is observed that the former does not depend on the distance from the grating, while the latter changes with this distance. However, as one moves further apart from the grating, in the far field, both distributions become identical.",
journal = "European Physical Journal-Special Topics",
title = "Should particle trajectories comply with the transverse momentum distribution?",
pages = "104-95",
volume = "160",
doi = "10.1140/epjst/e2008-00713-0"
}

Davidović, M., Arsenović, D., Božić, M., Sanz, A. S.,& Miret-Artes, S.. (2008). Should particle trajectories comply with the transverse momentum distribution?. in European Physical Journal-Special Topics, 160, 95-104.
https://doi.org/10.1140/epjst/e2008-00713-0

Davidović M, Arsenović D, Božić M, Sanz AS, Miret-Artes S. Should particle trajectories comply with the transverse momentum distribution?. in European Physical Journal-Special Topics. 2008;160:95-104.
doi:10.1140/epjst/e2008-00713-0 .

Davidović, Milena, Arsenović, Dušan, Božić, Mirjana, Sanz, Angel S., Miret-Artes, Salvador, "Should particle trajectories comply with the transverse momentum distribution?" in European Physical Journal-Special Topics, 160 (2008):95-104,
https://doi.org/10.1140/epjst/e2008-00713-0 . .