Khazanov, E.

Lozhkarev, V.

Mironov, S.

English

Электронная библиотека БГУ

 36
Management of temporal parameters of super-powerful laser pulses 
S. Mironov, V. Lozhkarev, E. Khazanov 
Nonlinear dynamic and optics Department, Institute of Applied Physics, Nizhny 
Novgorod, Russia, e-mail: Mironov_s@appl.sci-nnov.ru 
 
The report is devoted to the management of pulse duration and temporal intensity 
contrast ratio enhancement of laser pulses with petawatt power. The theoretical 
and experimental results of second harmonic generation process under strong 
influence of cubic nonlinearity will be discussed. The outcomes of 
implementation of small-scale self-focusing suppression method at intense laser 
beams (1÷4TW/cm2) will be considered. 
 
WKB approach applied to 1D time-dependent  
nonlinear Hamiltonian oscillators 
M. Robnik 
CAMTP - Center for Applied Mathematics and Theoretical Physics, University of 
Maribor, Maribor, Slovenia, European Union, e-mail: Robnik@uni-mb.si 
 
We present a simple WKB-like approach to obtain approximate analytic solutions 
to a certain class of time-dependent nonlinear 1D Hamiltonian oscillators. The 
case of homogeneous power law potentials is solved explicitly in closed form in 
the leading order. The accuracy of the approximation is surprisingly good and we 
illustrate it in case of the quartic oscillator. The method is expected to be useful 
in treating the statistical properties of the dynamical quantities (like energy and 
adiabatic invariant) in nonlinear oscillators, and in many other applications in 
nonlinear oscillators. 
References: 
Papamikos G and Robnik M 2012 J.Phys.A: Math.Theor. 45 0152206 
Robnik M and Romanovski V G 2000  J.Phys.A: Math.Theor. 33 5093 
Robnik M V and  Romanovski V G 2008 "Let's Face Chaos through Nonlinear 
Dynamics",  
Proceedings of the 7th International summer school/conference, Maribor-Slovenia,  
2008, in AIP Conf. Proc. 1076, Eds. M.Robnik and V.G. Romanovski. 
 
Chaotic dynamics of generation of radiation by  
relativistic electron beams in photonic crystals 
S. Sytova 
Research Institute for Nuclear Problems, Belarusian State University, Minsk, Belarus, 
e-mail: sytova@inp.bsu.by 
 
We consider generation of radiation by relativistic electron beams in photonic 
(electromagnetic) crystals in conditions of Volume Free Electron Lasers (VFEL). 


Management of temporal parameters of super-powerful laser pulses

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Management of temporal parameters of super-powerful laser pulses

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