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Nonlinear propagation of sinusoidal pulse laser beam in homogeneous plasma

Authors :
Gaurav Raj
Ajay K. Upadhyay
Amita Malviya
Pallavi Jha
Rohit Mishra
Source :
Physics of Plasmas. 14:093107
Publication Year :
2007
Publisher :
AIP Publishing, 2007.

Abstract

The propagation of an intense laser beam, having a sinusoidal pulse profile, in underdense plasma, is analyzed. Applying variational technique and using a standard trial function for the laser pulse amplitude, simultaneous equations describing the evolution of pulse length and spot size are obtained. Relativistic nonlinearity, finite pulse length, and group velocity dispersion effects have been taken into account. Using numerical methods, a graphical analysis of simultaneous evolution of laser spot size and pulse length is presented.

Details

ISSN :
10897674 and 1070664X
Volume :
14
Database :
OpenAIRE
Journal :
Physics of Plasmas
Accession number :
edsair.doi...........344c02353d05c9e751886fbd41b82036
Full Text :
https://doi.org/10.1063/1.2778415