TY  - JOUR
AU  - Škorić, Miloš M.
AU  - Nikolić, Lj.
AU  - Hadžievski, Ljupčo
AU  - Ishiguro, Seiji
AU  - Mima, Kunioki
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6955
AB  - Optical pulse compression by the linear reflection of a laser pulse from a relativistically moving plasma is studied. Using Lorentz transformations, covariance of Maxwells equations and the principle of phase invariance to transform between the rest frame and the moving frame, analytics can be exactly performed in the moving frame. Closed-form formulae for reflected waveforms as a function of incident angle show temporal compression and intensity amplification by a factor of 2 gamma and 4 gamma(2), respectively, where gamma is the Lorentz factor of the relativistic electron plasma. As an independent test, fully relativistic electromagnetic particle simulations agree well with analytical results, predicting pulse compression and large amplification to be of relevance to the generation of attosecond optical pulses.
T2  - Physica Scripta
T1  - Ultra-short photon pulse generation in relativistic laser-plasmas
VL  - T149
DO  - 10.1088/0031-8949/2012/T149/014081
ER  - 

@article{
author = "Škorić, Miloš M. and Nikolić, Lj. and Hadžievski, Ljupčo and Ishiguro, Seiji and Mima, Kunioki",
year = "2012",
abstract = "Optical pulse compression by the linear reflection of a laser pulse from a relativistically moving plasma is studied. Using Lorentz transformations, covariance of Maxwells equations and the principle of phase invariance to transform between the rest frame and the moving frame, analytics can be exactly performed in the moving frame. Closed-form formulae for reflected waveforms as a function of incident angle show temporal compression and intensity amplification by a factor of 2 gamma and 4 gamma(2), respectively, where gamma is the Lorentz factor of the relativistic electron plasma. As an independent test, fully relativistic electromagnetic particle simulations agree well with analytical results, predicting pulse compression and large amplification to be of relevance to the generation of attosecond optical pulses.",
journal = "Physica Scripta",
title = "Ultra-short photon pulse generation in relativistic laser-plasmas",
volume = "T149",
doi = "10.1088/0031-8949/2012/T149/014081"
}

Škorić, M. M., Nikolić, Lj., Hadžievski, L., Ishiguro, S.,& Mima, K.. (2012). Ultra-short photon pulse generation in relativistic laser-plasmas. in Physica Scripta, T149.
https://doi.org/10.1088/0031-8949/2012/T149/014081

Škorić MM, Nikolić L, Hadžievski L, Ishiguro S, Mima K. Ultra-short photon pulse generation in relativistic laser-plasmas. in Physica Scripta. 2012;T149.
doi:10.1088/0031-8949/2012/T149/014081 .

Škorić, Miloš M., Nikolić, Lj., Hadžievski, Ljupčo, Ishiguro, Seiji, Mima, Kunioki, "Ultra-short photon pulse generation in relativistic laser-plasmas" in Physica Scripta, T149 (2012),
https://doi.org/10.1088/0031-8949/2012/T149/014081 . .

TY  - CONF
AU  - Škorić, Miloš M.
AU  - Stanic, B. V.
AU  - Hadžievski, Ljupčo
AU  - Nikolić, Lj.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6834
AB  - The reflection of an obliquely incident electromagnetic pulse from a moving plasma half-space is studied. Using the Lorentz transformations, covariance of Maxwells equations and principle of phase invariance to transform between the rest frame and the moving frame, analytical formula for the linear reflected waveform shows temporal compression and pulse amplification at relativistic velocities of interest for generation of ultra-short laser optical pulses.
T1  - Relativistic Compression of a Laser Pulse Reflected from a Moving Plasma
IS  - 84
SP  - 499
EP  - +
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6834
ER  - 

@conference{
author = "Škorić, Miloš M. and Stanic, B. V. and Hadžievski, Ljupčo and Nikolić, Lj.",
year = "2008",
abstract = "The reflection of an obliquely incident electromagnetic pulse from a moving plasma half-space is studied. Using the Lorentz transformations, covariance of Maxwells equations and principle of phase invariance to transform between the rest frame and the moving frame, analytical formula for the linear reflected waveform shows temporal compression and pulse amplification at relativistic velocities of interest for generation of ultra-short laser optical pulses.",
title = "Relativistic Compression of a Laser Pulse Reflected from a Moving Plasma",
number = "84",
pages = "499-+",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6834"
}

Škorić, M. M., Stanic, B. V., Hadžievski, L.,& Nikolić, Lj.. (2008). Relativistic Compression of a Laser Pulse Reflected from a Moving Plasma. (84), 499-+.
https://hdl.handle.net/21.15107/rcub_vinar_6834

Škorić MM, Stanic BV, Hadžievski L, Nikolić L. Relativistic Compression of a Laser Pulse Reflected from a Moving Plasma. 2008;(84):499-+.
https://hdl.handle.net/21.15107/rcub_vinar_6834 .

Škorić, Miloš M., Stanic, B. V., Hadžievski, Ljupčo, Nikolić, Lj., "Relativistic Compression of a Laser Pulse Reflected from a Moving Plasma", no. 84 (2008):499-+,
https://hdl.handle.net/21.15107/rcub_vinar_6834 .

TY  - CONF
AU  - Nikolić, Lj.
AU  - Škorić, Miloš M.
AU  - Ishiguro, Seiji
AU  - Sakagami, H.
AU  - Vidal, F.
AU  - Johnston, T.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6897
AB  - Hollow cone-shaped overdense plasma targets were used to investigate the generation and transport of fast particles in a high-intensity laser-matter interaction. Using 2d PIC simulations we examine cone, cone-wire and cone with an open tip target designs. Localization of electron jets and an angular spread are found in all cases of the laser-cone interaction. However, in the cone-wire geometry, at later times, the charge separation and radial electric fields around the wire collimate electron streams with an electron hot spot at the front end of the wire. The main mechanism of the electron transport in the targets is the reflection of electrons from the potential walls of the cone surface, and no significant surface electron transport is observed. Furthermore, the presence of harmonics in the reflected light suggests that the field intensity in the cone can be enhanced not only by simple multiple reflection but also by the field modulation due to harmonics generation. Moreover, it is found that the laser interaction with the open-tip cone can efficiently generate trains of short ( LT lambda) attosecond electron sheets close to the laser axis.
C3  - Journal of Physics: Conference Series
T1  - Particle Simulations of High-Intensity Laser Interaction with Cone Targets
VL  - 112
DO  - 10.1088/1742-6596/112/2/022086
ER  - 

@conference{
author = "Nikolić, Lj. and Škorić, Miloš M. and Ishiguro, Seiji and Sakagami, H. and Vidal, F. and Johnston, T.",
year = "2008",
abstract = "Hollow cone-shaped overdense plasma targets were used to investigate the generation and transport of fast particles in a high-intensity laser-matter interaction. Using 2d PIC simulations we examine cone, cone-wire and cone with an open tip target designs. Localization of electron jets and an angular spread are found in all cases of the laser-cone interaction. However, in the cone-wire geometry, at later times, the charge separation and radial electric fields around the wire collimate electron streams with an electron hot spot at the front end of the wire. The main mechanism of the electron transport in the targets is the reflection of electrons from the potential walls of the cone surface, and no significant surface electron transport is observed. Furthermore, the presence of harmonics in the reflected light suggests that the field intensity in the cone can be enhanced not only by simple multiple reflection but also by the field modulation due to harmonics generation. Moreover, it is found that the laser interaction with the open-tip cone can efficiently generate trains of short ( LT lambda) attosecond electron sheets close to the laser axis.",
journal = "Journal of Physics: Conference Series",
title = "Particle Simulations of High-Intensity Laser Interaction with Cone Targets",
volume = "112",
doi = "10.1088/1742-6596/112/2/022086"
}

Nikolić, Lj., Škorić, M. M., Ishiguro, S., Sakagami, H., Vidal, F.,& Johnston, T.. (2008). Particle Simulations of High-Intensity Laser Interaction with Cone Targets. in Journal of Physics: Conference Series, 112.
https://doi.org/10.1088/1742-6596/112/2/022086

Nikolić L, Škorić MM, Ishiguro S, Sakagami H, Vidal F, Johnston T. Particle Simulations of High-Intensity Laser Interaction with Cone Targets. in Journal of Physics: Conference Series. 2008;112.
doi:10.1088/1742-6596/112/2/022086 .

Nikolić, Lj., Škorić, Miloš M., Ishiguro, Seiji, Sakagami, H., Vidal, F., Johnston, T., "Particle Simulations of High-Intensity Laser Interaction with Cone Targets" in Journal of Physics: Conference Series, 112 (2008),
https://doi.org/10.1088/1742-6596/112/2/022086 . .

TY  - JOUR
AU  - Nikolić, Lj.
AU  - Skala, Dejan
AU  - Nikolić, Vladimir M.
AU  - Stamenkovic, J
AU  - Babić, Dragan
AU  - Ilic-Stojanovic, S
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2690
AB  - In this work the synthesis of a crosslinked macroporous copolymer was effected from methyl methacrylate and acrylamide. The synthesis process began with emulsion prepolymerization, followed by sol-gel copolymerization until a hard block was obtained. Determination of the properties of the obtained material was carried out by FTIR, mercury porosimetry, and SEM microscopy. The material was characterized by a porous structure with open pores. The macroporous copolymer obtained can be used for polymer-analog reactions and the transformation of amide and ester groups into acyl azide groups. It can be used as a hard inert support for the immobilization of enzymes, or other proteins, by condensation of acyl azide group on poly-mer with the free amino group from the base amino acid of enzyme/protein. For the immobilization of microorganisms it can be used by vacuum diffusion of microorganism suspension into the porous structure, without active group transformation reactions. With microorganisms in the polymer pores, microorganism colonies form within the copolymer by microbial fermentation. (C) 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 387-395, 2004.
T2  - Journal of Applied Polymer Science
T1  - Methyl methacrylate and acrylamide crosslinked macroporous copolymers
VL  - 91
IS  - 1
SP  - 387
EP  - 395
DO  - 10.1002/app.13113
ER  - 

@article{
author = "Nikolić, Lj. and Skala, Dejan and Nikolić, Vladimir M. and Stamenkovic, J and Babić, Dragan and Ilic-Stojanovic, S",
year = "2004",
abstract = "In this work the synthesis of a crosslinked macroporous copolymer was effected from methyl methacrylate and acrylamide. The synthesis process began with emulsion prepolymerization, followed by sol-gel copolymerization until a hard block was obtained. Determination of the properties of the obtained material was carried out by FTIR, mercury porosimetry, and SEM microscopy. The material was characterized by a porous structure with open pores. The macroporous copolymer obtained can be used for polymer-analog reactions and the transformation of amide and ester groups into acyl azide groups. It can be used as a hard inert support for the immobilization of enzymes, or other proteins, by condensation of acyl azide group on poly-mer with the free amino group from the base amino acid of enzyme/protein. For the immobilization of microorganisms it can be used by vacuum diffusion of microorganism suspension into the porous structure, without active group transformation reactions. With microorganisms in the polymer pores, microorganism colonies form within the copolymer by microbial fermentation. (C) 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 387-395, 2004.",
journal = "Journal of Applied Polymer Science",
title = "Methyl methacrylate and acrylamide crosslinked macroporous copolymers",
volume = "91",
number = "1",
pages = "387-395",
doi = "10.1002/app.13113"
}

Nikolić, Lj., Skala, D., Nikolić, V. M., Stamenkovic, J., Babić, D.,& Ilic-Stojanovic, S.. (2004). Methyl methacrylate and acrylamide crosslinked macroporous copolymers. in Journal of Applied Polymer Science, 91(1), 387-395.
https://doi.org/10.1002/app.13113

Nikolić L, Skala D, Nikolić VM, Stamenkovic J, Babić D, Ilic-Stojanovic S. Methyl methacrylate and acrylamide crosslinked macroporous copolymers. in Journal of Applied Polymer Science. 2004;91(1):387-395.
doi:10.1002/app.13113 .

Nikolić, Lj., Skala, Dejan, Nikolić, Vladimir M., Stamenkovic, J, Babić, Dragan, Ilic-Stojanovic, S, "Methyl methacrylate and acrylamide crosslinked macroporous copolymers" in Journal of Applied Polymer Science, 91, no. 1 (2004):387-395,
https://doi.org/10.1002/app.13113 . .

TY  - CONF
AU  - Nikolić, Lj.
AU  - Ishiguro, Seiji
AU  - Škorić, Miloš M.
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6493
AB  - To investigate the growth of instabilities in an underdense plasma, a number of simulations was carried out using the one-dimensional electromagnetic (EM) relativistic particle-in-cell code. A new type of Raman-like scattering was identified in a subcritical regime, which is over-dense for standard SRS. This novel instability is a parametric decay of the relativistic EM wave into a scattered light and an electron-acoustic (omega LT omega(p)) electrostatic wave. In the linear stage, resonant matchings are well satisfied, while the scattered Stokes wave is always driven near critical. During nonlinear saturation, due to rapid growth and strong localization of the Stokes wave, narrow intense EM soliton-like structures with down-shifted laser light trapped inside are formed; eventually, to be irradiated through the plasma-vacuum interface in the form of intense low-frequency EM bursts. This behavior alters the distribution of laser energy between transmission, scattering losses and generation of energetic electrons.
C3  - AIP Conference Proceedings
T1  - Simulations of relativistic laser-plasma interactions
VL  - 740
SP  - 509
EP  - 520
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6493
ER  - 

@conference{
author = "Nikolić, Lj. and Ishiguro, Seiji and Škorić, Miloš M.",
year = "2004",
abstract = "To investigate the growth of instabilities in an underdense plasma, a number of simulations was carried out using the one-dimensional electromagnetic (EM) relativistic particle-in-cell code. A new type of Raman-like scattering was identified in a subcritical regime, which is over-dense for standard SRS. This novel instability is a parametric decay of the relativistic EM wave into a scattered light and an electron-acoustic (omega LT omega(p)) electrostatic wave. In the linear stage, resonant matchings are well satisfied, while the scattered Stokes wave is always driven near critical. During nonlinear saturation, due to rapid growth and strong localization of the Stokes wave, narrow intense EM soliton-like structures with down-shifted laser light trapped inside are formed; eventually, to be irradiated through the plasma-vacuum interface in the form of intense low-frequency EM bursts. This behavior alters the distribution of laser energy between transmission, scattering losses and generation of energetic electrons.",
journal = "AIP Conference Proceedings",
title = "Simulations of relativistic laser-plasma interactions",
volume = "740",
pages = "509-520",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6493"
}

Nikolić, Lj., Ishiguro, S.,& Škorić, M. M.. (2004). Simulations of relativistic laser-plasma interactions. in AIP Conference Proceedings, 740, 509-520.
https://hdl.handle.net/21.15107/rcub_vinar_6493

Nikolić L, Ishiguro S, Škorić MM. Simulations of relativistic laser-plasma interactions. in AIP Conference Proceedings. 2004;740:509-520.
https://hdl.handle.net/21.15107/rcub_vinar_6493 .

Nikolić, Lj., Ishiguro, Seiji, Škorić, Miloš M., "Simulations of relativistic laser-plasma interactions" in AIP Conference Proceedings, 740 (2004):509-520,
https://hdl.handle.net/21.15107/rcub_vinar_6493 .

TY  - JOUR
AU  - Nikolić, Ljubomir
AU  - Škorić, Miloš M.
AU  - Ishiguro, Seiji
AU  - Sato, Tetsuya
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6361
AB  - Propagation of a laser light through regions of an underdense plasma is an active research topic in laser fusion. In particular, a large effort has been invested in studies of stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS), which can reflect laser energy and produce energetic particles to preheat a fusion energy target. Experiments, theory, and simulations agree on a complex interplay between various laser-plasma instabilities. By particle-in-cell simulations of an underdense electron plasma, apart from the standard SRS, a strong backscattering was found near the electron plasma frequency at densities beyond the quarter critical. This novel instability, recognized in recent experiments as stimulated laser scattering on a trapped electron-acoustic mode (SEAS), is absent from a classical theory of laser-parametric instabilities. A parametric excitation of SEAS instability is explained by a three-wave resonant decay of the incident laser light into a standing backscattered wave and a slow trapped electron-acoustic wave (omega LT omega(p)). Large SEAS pulsations, eventually suppressed by relativistic heating of electrons, are observed in these simulations. This phenomenon seems relevant to future hohlraum target and fast ignition experiments.
T2  - Fusion Science and Technology
T1  - On stimulated scattering of laser light in inertial fusion energy targets
VL  - 43
IS  - 3
SP  - 359
EP  - 365
DO  - 10.13182/FST03-A279
ER  - 

@article{
author = "Nikolić, Ljubomir and Škorić, Miloš M. and Ishiguro, Seiji and Sato, Tetsuya",
year = "2003",
abstract = "Propagation of a laser light through regions of an underdense plasma is an active research topic in laser fusion. In particular, a large effort has been invested in studies of stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS), which can reflect laser energy and produce energetic particles to preheat a fusion energy target. Experiments, theory, and simulations agree on a complex interplay between various laser-plasma instabilities. By particle-in-cell simulations of an underdense electron plasma, apart from the standard SRS, a strong backscattering was found near the electron plasma frequency at densities beyond the quarter critical. This novel instability, recognized in recent experiments as stimulated laser scattering on a trapped electron-acoustic mode (SEAS), is absent from a classical theory of laser-parametric instabilities. A parametric excitation of SEAS instability is explained by a three-wave resonant decay of the incident laser light into a standing backscattered wave and a slow trapped electron-acoustic wave (omega LT omega(p)). Large SEAS pulsations, eventually suppressed by relativistic heating of electrons, are observed in these simulations. This phenomenon seems relevant to future hohlraum target and fast ignition experiments.",
journal = "Fusion Science and Technology",
title = "On stimulated scattering of laser light in inertial fusion energy targets",
volume = "43",
number = "3",
pages = "359-365",
doi = "10.13182/FST03-A279"
}

Nikolić, L., Škorić, M. M., Ishiguro, S.,& Sato, T.. (2003). On stimulated scattering of laser light in inertial fusion energy targets. in Fusion Science and Technology, 43(3), 359-365.
https://doi.org/10.13182/FST03-A279

Nikolić L, Škorić MM, Ishiguro S, Sato T. On stimulated scattering of laser light in inertial fusion energy targets. in Fusion Science and Technology. 2003;43(3):359-365.
doi:10.13182/FST03-A279 .

Nikolić, Ljubomir, Škorić, Miloš M., Ishiguro, Seiji, Sato, Tetsuya, "On stimulated scattering of laser light in inertial fusion energy targets" in Fusion Science and Technology, 43, no. 3 (2003):359-365,
https://doi.org/10.13182/FST03-A279 . .

TY  - CONF
AU  - Hadžievski, Ljupčo
AU  - Škorić, Miloš M.
AU  - Jovanović, Moma S.
AU  - Nikolić, Lj.
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6342
AB  - Localized electromagnetic structures with trapped laser light inside are often found in simulations of relativistic laser-plasmas. First, we examine existence and stability of one-dimensional electromagnetic solitons formed in a relativistic laser interaction with an underdense cold plasma. In a weakly relativistic model, the original equation of the nonlinear Schrodinger type, with local and non-local cubic nonlinearities is derived. Standing electromagnetic solitons are analytically shown to be stable in agreement with the model simulation. Next, we discuss a novel example of a stimulated backscattering of a laser light from the slow trapped electron-acoustic wave, involving a standing (localized) Stokes light sideband. Conditions are examined when above underdense instability dominates over standard stimulated Raman backscattering.
C3  - AIP Conference Proceedings
T1  - Electromagnetic localized structures in a relativistic laser-plasma interaction
VL  - 634
SP  - 99
EP  - 106
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6342
ER  - 

@conference{
author = "Hadžievski, Ljupčo and Škorić, Miloš M. and Jovanović, Moma S. and Nikolić, Lj.",
year = "2002",
abstract = "Localized electromagnetic structures with trapped laser light inside are often found in simulations of relativistic laser-plasmas. First, we examine existence and stability of one-dimensional electromagnetic solitons formed in a relativistic laser interaction with an underdense cold plasma. In a weakly relativistic model, the original equation of the nonlinear Schrodinger type, with local and non-local cubic nonlinearities is derived. Standing electromagnetic solitons are analytically shown to be stable in agreement with the model simulation. Next, we discuss a novel example of a stimulated backscattering of a laser light from the slow trapped electron-acoustic wave, involving a standing (localized) Stokes light sideband. Conditions are examined when above underdense instability dominates over standard stimulated Raman backscattering.",
journal = "AIP Conference Proceedings",
title = "Electromagnetic localized structures in a relativistic laser-plasma interaction",
volume = "634",
pages = "99-106",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6342"
}

Hadžievski, L., Škorić, M. M., Jovanović, M. S.,& Nikolić, Lj.. (2002). Electromagnetic localized structures in a relativistic laser-plasma interaction. in AIP Conference Proceedings, 634, 99-106.
https://hdl.handle.net/21.15107/rcub_vinar_6342

Hadžievski L, Škorić MM, Jovanović MS, Nikolić L. Electromagnetic localized structures in a relativistic laser-plasma interaction. in AIP Conference Proceedings. 2002;634:99-106.
https://hdl.handle.net/21.15107/rcub_vinar_6342 .

Hadžievski, Ljupčo, Škorić, Miloš M., Jovanović, Moma S., Nikolić, Lj., "Electromagnetic localized structures in a relativistic laser-plasma interaction" in AIP Conference Proceedings, 634 (2002):99-106,
https://hdl.handle.net/21.15107/rcub_vinar_6342 .

TY  - JOUR
AU  - Nikolić, Lj.
AU  - Škorić, Miloš M.
AU  - Ishiguro, Seiji
AU  - Sato, T
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2555
AB  - Intense laser-plasma interaction can be a source of various electronic instabilities. Recently, stimulated backscattering from a trapped electron-acoustic wave (SEAS) [Montgomery , Phys. Rev. Lett. 87, 155001 (2001)] was proposed to reinterpret spectra previously attributed to stimulated Raman scattering (SRS) from unrealistically low densities. By particle simulations in a uniform plasma layer, which is overdense for ordinary SRS, strong reflection by SEAS at the electron plasma frequency is found. Transient SEAS reflectivity pulsations are followed by strong relativistic heating of electrons. Physical conditions are explained by three-wave parametric coupling between laser light, standing backscattered wave and slow electron-acoustic wave. Regions in which SEAS reflection can dominate over SRS are singled out.
T2  - Physical Review E
T1  - Stimulated electron-acoustic-wave scattering in a laser plasma
VL  - 66
IS  - 3
DO  - 10.1103/PhysRevE.66.036404
ER  - 

@article{
author = "Nikolić, Lj. and Škorić, Miloš M. and Ishiguro, Seiji and Sato, T",
year = "2002",
abstract = "Intense laser-plasma interaction can be a source of various electronic instabilities. Recently, stimulated backscattering from a trapped electron-acoustic wave (SEAS) [Montgomery , Phys. Rev. Lett. 87, 155001 (2001)] was proposed to reinterpret spectra previously attributed to stimulated Raman scattering (SRS) from unrealistically low densities. By particle simulations in a uniform plasma layer, which is overdense for ordinary SRS, strong reflection by SEAS at the electron plasma frequency is found. Transient SEAS reflectivity pulsations are followed by strong relativistic heating of electrons. Physical conditions are explained by three-wave parametric coupling between laser light, standing backscattered wave and slow electron-acoustic wave. Regions in which SEAS reflection can dominate over SRS are singled out.",
journal = "Physical Review E",
title = "Stimulated electron-acoustic-wave scattering in a laser plasma",
volume = "66",
number = "3",
doi = "10.1103/PhysRevE.66.036404"
}

Nikolić, Lj., Škorić, M. M., Ishiguro, S.,& Sato, T.. (2002). Stimulated electron-acoustic-wave scattering in a laser plasma. in Physical Review E, 66(3).
https://doi.org/10.1103/PhysRevE.66.036404

Nikolić L, Škorić MM, Ishiguro S, Sato T. Stimulated electron-acoustic-wave scattering in a laser plasma. in Physical Review E. 2002;66(3).
doi:10.1103/PhysRevE.66.036404 .

Nikolić, Lj., Škorić, Miloš M., Ishiguro, Seiji, Sato, T, "Stimulated electron-acoustic-wave scattering in a laser plasma" in Physical Review E, 66, no. 3 (2002),
https://doi.org/10.1103/PhysRevE.66.036404 . .

TY  - JOUR
AU  - Pešić, S.
AU  - Nikolić, Lj.
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2302
AB  - For arbitrary wave propagation angle with respect to the magnetic field the wave cutoff and in particular, its dependence on the particle temperature are investigated. The obtained results demonstrate that when the wave propagation near the true cut-off (N-perpendicular to = N-parallel to = 0) as well as the cut-off of waves propagating at fixed, real N-parallel to-value (N-perpendicular to = 0, N-parallel to not equal 0) are considered, it is essential to take relativistic effects into account. A simple expression is given for the cut-off density which is acceptable for most applications below T = 20 keV. In this temperature range it predicts values of the cut-off density of the ordinary mode which are close to the relativistic ones.
T2  - Plasma Physics and Controlled Fusion
T1  - On the temperature dependence of the wave cut-off
VL  - 41
IS  - 11
SP  - L49
EP  - L54
DO  - 10.1088/0741-3335/41/11/101
ER  - 

@article{
author = "Pešić, S. and Nikolić, Lj.",
year = "1999",
abstract = "For arbitrary wave propagation angle with respect to the magnetic field the wave cutoff and in particular, its dependence on the particle temperature are investigated. The obtained results demonstrate that when the wave propagation near the true cut-off (N-perpendicular to = N-parallel to = 0) as well as the cut-off of waves propagating at fixed, real N-parallel to-value (N-perpendicular to = 0, N-parallel to not equal 0) are considered, it is essential to take relativistic effects into account. A simple expression is given for the cut-off density which is acceptable for most applications below T = 20 keV. In this temperature range it predicts values of the cut-off density of the ordinary mode which are close to the relativistic ones.",
journal = "Plasma Physics and Controlled Fusion",
title = "On the temperature dependence of the wave cut-off",
volume = "41",
number = "11",
pages = "L49-L54",
doi = "10.1088/0741-3335/41/11/101"
}

Pešić, S.,& Nikolić, Lj.. (1999). On the temperature dependence of the wave cut-off. in Plasma Physics and Controlled Fusion, 41(11), L49-L54.
https://doi.org/10.1088/0741-3335/41/11/101

Pešić S, Nikolić L. On the temperature dependence of the wave cut-off. in Plasma Physics and Controlled Fusion. 1999;41(11):L49-L54.
doi:10.1088/0741-3335/41/11/101 .

Pešić, S., Nikolić, Lj., "On the temperature dependence of the wave cut-off" in Plasma Physics and Controlled Fusion, 41, no. 11 (1999):L49-L54,
https://doi.org/10.1088/0741-3335/41/11/101 . .

TY  - JOUR
AU  - Nikolić, Lj.
AU  - Pešić, S.
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2254
AB  - Extraordinary and quasilongitudinal waves propagating at an arbitrary angle with respect to the steady magnetic field are investigated within the fully relativistic theory. The results of the present paper complement the previously reported results obtained within the weakly relativistic approximation by new effects which are brought on by finite N-parallel to-values and by relativistic effects at high electron temperatures. In particular, it is found that in a wide N-parallel to-range relativistic effects lend to an important increase of the right-hand cut-off density. The phenomenon of mode interaction is examined in detail, in particular its N-parallel to and temperature dependence. It is found that there rue three points at which the solutions of the fully relativistic dispersion equation describing the extraordinary and the least damped quasilongitudinal modes coincide. The first branch point occurs at low plasma densities, near the fundamental electron cyclotron (EC) frequency. It may be located on both, the high-and low-density side of the high-held limit of the right-hand cut-off. The remaining two branch points form a closed region in the parameter space in which mode interaction occurs. At low electron temperatures, the range of frequency variation of the aforementioned region is very narrow and centred very close to the second EC harmonic. The increase of the electron temperature enlarges the N-parallel to-range in which mode interaction occurs appreciably. The fact that mode interaction occurs at relatively large N-parallel to-values should be taken into account when considering the EC absorption and emission.
T2  - Plasma Physics and Controlled Fusion
T1  - Fully relativistic description of extraordinary and quasilongitudinal waves propagating in plasmas
VL  - 41
IS  - 5
SP  - 575
EP  - 585
DO  - 10.1088/0741-3335/41/5/001
ER  - 

@article{
author = "Nikolić, Lj. and Pešić, S.",
year = "1999",
abstract = "Extraordinary and quasilongitudinal waves propagating at an arbitrary angle with respect to the steady magnetic field are investigated within the fully relativistic theory. The results of the present paper complement the previously reported results obtained within the weakly relativistic approximation by new effects which are brought on by finite N-parallel to-values and by relativistic effects at high electron temperatures. In particular, it is found that in a wide N-parallel to-range relativistic effects lend to an important increase of the right-hand cut-off density. The phenomenon of mode interaction is examined in detail, in particular its N-parallel to and temperature dependence. It is found that there rue three points at which the solutions of the fully relativistic dispersion equation describing the extraordinary and the least damped quasilongitudinal modes coincide. The first branch point occurs at low plasma densities, near the fundamental electron cyclotron (EC) frequency. It may be located on both, the high-and low-density side of the high-held limit of the right-hand cut-off. The remaining two branch points form a closed region in the parameter space in which mode interaction occurs. At low electron temperatures, the range of frequency variation of the aforementioned region is very narrow and centred very close to the second EC harmonic. The increase of the electron temperature enlarges the N-parallel to-range in which mode interaction occurs appreciably. The fact that mode interaction occurs at relatively large N-parallel to-values should be taken into account when considering the EC absorption and emission.",
journal = "Plasma Physics and Controlled Fusion",
title = "Fully relativistic description of extraordinary and quasilongitudinal waves propagating in plasmas",
volume = "41",
number = "5",
pages = "575-585",
doi = "10.1088/0741-3335/41/5/001"
}

Nikolić, Lj.,& Pešić, S.. (1999). Fully relativistic description of extraordinary and quasilongitudinal waves propagating in plasmas. in Plasma Physics and Controlled Fusion, 41(5), 575-585.
https://doi.org/10.1088/0741-3335/41/5/001

Nikolić L, Pešić S. Fully relativistic description of extraordinary and quasilongitudinal waves propagating in plasmas. in Plasma Physics and Controlled Fusion. 1999;41(5):575-585.
doi:10.1088/0741-3335/41/5/001 .

Nikolić, Lj., Pešić, S., "Fully relativistic description of extraordinary and quasilongitudinal waves propagating in plasmas" in Plasma Physics and Controlled Fusion, 41, no. 5 (1999):575-585,
https://doi.org/10.1088/0741-3335/41/5/001 . .

TY  - JOUR
AU  - Nikolić, Lj.
AU  - Pešić, S.
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2161
AB  - The propagation and absorption of ordinary waves in fully relativistic plasma are investigated. Several interesting effects introduced by the relativistic mass increase associated with an increase in the electron temperature are examined. In particular, it is found that the cutoff density of ordinary waves increases significantly as the electron temperature increases. The effects of anomalous wave dispersion, which appear near the fundamental electron cyclotron frequency and its second and third harmonic, are greatest for low temperatures and subsist up to intermediate temperatures (T approximate to 300 keV). An efficient damping of ordinary waves is obtained in a wide temperature range. The harmonic structure of the absorption profiles and the effects of anomalous dispersion disappear almost simultaneously at high electron temperatures. The results obtained may have important implications for the wave absorption and in particular, for emission in relativistic plasmas.
T2  - Plasma Physics and Controlled Fusion
T1  - Ordinary waves in relativistic plasmas
VL  - 40
IS  - 7
SP  - 1373
EP  - 1382
DO  - 10.1088/0741-3335/40/7/011
ER  - 

@article{
author = "Nikolić, Lj. and Pešić, S.",
year = "1998",
abstract = "The propagation and absorption of ordinary waves in fully relativistic plasma are investigated. Several interesting effects introduced by the relativistic mass increase associated with an increase in the electron temperature are examined. In particular, it is found that the cutoff density of ordinary waves increases significantly as the electron temperature increases. The effects of anomalous wave dispersion, which appear near the fundamental electron cyclotron frequency and its second and third harmonic, are greatest for low temperatures and subsist up to intermediate temperatures (T approximate to 300 keV). An efficient damping of ordinary waves is obtained in a wide temperature range. The harmonic structure of the absorption profiles and the effects of anomalous dispersion disappear almost simultaneously at high electron temperatures. The results obtained may have important implications for the wave absorption and in particular, for emission in relativistic plasmas.",
journal = "Plasma Physics and Controlled Fusion",
title = "Ordinary waves in relativistic plasmas",
volume = "40",
number = "7",
pages = "1373-1382",
doi = "10.1088/0741-3335/40/7/011"
}

Nikolić, Lj.,& Pešić, S.. (1998). Ordinary waves in relativistic plasmas. in Plasma Physics and Controlled Fusion, 40(7), 1373-1382.
https://doi.org/10.1088/0741-3335/40/7/011

Nikolić L, Pešić S. Ordinary waves in relativistic plasmas. in Plasma Physics and Controlled Fusion. 1998;40(7):1373-1382.
doi:10.1088/0741-3335/40/7/011 .

Nikolić, Lj., Pešić, S., "Ordinary waves in relativistic plasmas" in Plasma Physics and Controlled Fusion, 40, no. 7 (1998):1373-1382,
https://doi.org/10.1088/0741-3335/40/7/011 . .

TY  - JOUR
AU  - Nikolić, Lj.
AU  - Pešić, S.
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2209
AB  - Ordinary waves propagating at an arbitrary angle to the steady magnetic field in thermal relativistic plasma are investigated. It is concluded that at oblique propagation, the wave propagation and absorption features are similar to Whose which characterize the perpendicular propagation of the ordinary wave. In particular, it is found that in a wide N-parallel to-range (0 less than or equal to N-parallel to LT 1) the increase of the electron temperature leads to an important shift of the location of the plasma cut-off density towards high values. The effect of anomalous wave dispersion near the fundamental and second harmonics of the electron cyclotron frequency is also present at oblique wave propagation. It disappears gradually in the high-temperature, fully relativistic domain. Efficient damping of the ordinary waves is obtained. It increases with electron density up to a broad maximum which occurs at relatively high densities.
T2  - Plasma Physics and Controlled Fusion
T1  - Ordinary waves in relativistic plasmas - arbitrary wave propagation angle
VL  - 40
IS  - 11
SP  - 1923
EP  - 1932
DO  - 10.1088/0741-3335/40/11/008
ER  - 

@article{
author = "Nikolić, Lj. and Pešić, S.",
year = "1998",
abstract = "Ordinary waves propagating at an arbitrary angle to the steady magnetic field in thermal relativistic plasma are investigated. It is concluded that at oblique propagation, the wave propagation and absorption features are similar to Whose which characterize the perpendicular propagation of the ordinary wave. In particular, it is found that in a wide N-parallel to-range (0 less than or equal to N-parallel to LT 1) the increase of the electron temperature leads to an important shift of the location of the plasma cut-off density towards high values. The effect of anomalous wave dispersion near the fundamental and second harmonics of the electron cyclotron frequency is also present at oblique wave propagation. It disappears gradually in the high-temperature, fully relativistic domain. Efficient damping of the ordinary waves is obtained. It increases with electron density up to a broad maximum which occurs at relatively high densities.",
journal = "Plasma Physics and Controlled Fusion",
title = "Ordinary waves in relativistic plasmas - arbitrary wave propagation angle",
volume = "40",
number = "11",
pages = "1923-1932",
doi = "10.1088/0741-3335/40/11/008"
}

Nikolić, Lj.,& Pešić, S.. (1998). Ordinary waves in relativistic plasmas - arbitrary wave propagation angle. in Plasma Physics and Controlled Fusion, 40(11), 1923-1932.
https://doi.org/10.1088/0741-3335/40/11/008

Nikolić L, Pešić S. Ordinary waves in relativistic plasmas - arbitrary wave propagation angle. in Plasma Physics and Controlled Fusion. 1998;40(11):1923-1932.
doi:10.1088/0741-3335/40/11/008 .

Nikolić, Lj., Pešić, S., "Ordinary waves in relativistic plasmas - arbitrary wave propagation angle" in Plasma Physics and Controlled Fusion, 40, no. 11 (1998):1923-1932,
https://doi.org/10.1088/0741-3335/40/11/008 . .