Effect of spatial dispersion of nonlinearity on self-focusing of laser radiation in liquid crystals: Theory and numerical experiments

1979 ◽  
Vol 22 (1) ◽  
pp. 36-41 ◽  
Author(s):  
S. M. Arakelyan ◽  
G. A. Vardanyan ◽  
V. A. Vysloukh ◽  
G. A. Lyakhov ◽  
V. A. Makarov ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Liquid Crystals ◽  
Numerical Experiments ◽  
Spatial Dispersion ◽  
Self Focusing

Explosive boiling of water droplets irradiated with intense CO_2-laser radiation: numerical experiments

1994 ◽  
Vol 33 (24) ◽  
pp. 5805 ◽  
Author(s):  
Yu. E. Geints ◽  
A. A. Zemlyanov ◽  
R. L. Armstrong
Keyword(s):  
Laser Radiation ◽  
Numerical Experiments ◽  
Water Droplets ◽  
Explosive Boiling

Influence of multiple scattering on self-focusing in nematic liquid crystals

2018 ◽  
Author(s):  
Alessandro Alberucci ◽  
Chandroth P. Jisha ◽  
Serena Bolis ◽  
Jeroen Beeckman ◽  
Stefan Nolte
Keyword(s):  
Liquid Crystals ◽  
Multiple Scattering ◽  
Nematic Liquid Crystals ◽  
Self Focusing

Self-focusing threshold of a beam of laser radiation in rubidium vapor

2016 ◽  
Vol 83 (11) ◽  
pp. 667 ◽  
Author(s):  
V. A. Sautenkov ◽  
M. N. Shneĭder ◽  
S. A. Saakyan ◽  
E. V. Vil’shanskaya ◽  
D. A. Murashkin ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Rubidium Vapor ◽  
Self Focusing

scholarly journals Relativistic self-focusing of transmitted laser radiation in plasmas

2000 ◽  
Vol 18 (1) ◽  
pp. 101-107 ◽  
Author(s):  
MEENU V. ASTHANA ◽  
DINESH VARSHNEY ◽  
M.S. SODHA
Keyword(s):  
Dielectric Constant ◽  
Laser Radiation ◽  
Critical Power ◽  
Interaction Process ◽  
Gaussian Laser Beam ◽  
Laser Plasma Interaction ◽  
Paraxial Ray Approximation ◽  
Self Focusing ◽  
Beam Incident ◽  
Paraxial Ray

This paper presents an analysis of relativistic self-focusing of a Gaussian laser beam incident normally on a plane interface of a linear medium and a nonlinear, nonabsorbing plasma with an intensity dependent dielectric constant. Considering the nonlinearity to arise from the relativistic variation of mass and the Lorentz force on electrons. Following Wentzel–Kramers–Brillouin (WKB) and paraxial ray approximation the phenomenon of relativistic self-focusing of the transmitted laser radiation has been analyzed for the arbitrary magnitude of nonlinearity. Change in the intensity distribution along the wavefront of the Gaussian beam, due to refraction at the interface has also been taken into account. The variation of beamwidth parameter with distance of propagation, self trapping condition and critical power has been evaluated. Numerical estimates for typical parameters of laser plasma interaction process indicate the refraction at the interface to have a significant effect on self-focusing.

Spatial dispersion in chiral liquid crystals. Effects of higher orders

1993 ◽  
Vol 14 (6) ◽  
pp. 1801-1830 ◽  
Author(s):  
E. Demikhov ◽  
H. Stegemeyer
Keyword(s):  
Liquid Crystals ◽  
Spatial Dispersion ◽  
Chiral Liquid Crystals
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