Propagation of sinusoidal pulse laser beam in a plasma channel

The propagation of an intense sinusoidal pulse laser beam, in a preformed plasma channel having a parabolic density profile, is analyzed. Considering a nonparaxial, nonlinear wave equation and using a variational technique, simultaneous equations describing the evolution of laser spot and pulse leng...

Full description

Saved in:
Bibliographic Details
Published in:Physics of plasmas 2007-11, Vol.14 (11), p.113105-113105-4
Main Authors: Upadhyay, Ajay K., Raj, Gaurav, Mishra, Rohit K., Jha, Pallavi
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM-PLASMA SYSTEMS
BETATRON OSCILLATIONS
LASER RADIATION
LASERS
LIGHT TRANSMISSION
NONLINEAR PROBLEMS
PLASMA
PLASMA DENSITY
PULSES
VARIATIONAL METHODS
WAVE EQUATIONS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The propagation of an intense sinusoidal pulse laser beam, in a preformed plasma channel having a parabolic density profile, is analyzed. Considering a nonparaxial, nonlinear wave equation and using a variational technique, simultaneous equations describing the evolution of laser spot and pulse length are obtained. Numerical methods are used to study the effect of pulse length variation on betatron oscillations of the laser spot size as it propagates in the plasma channel. Approximate conditions for propagation of the laser pulse with a constant spot size and pulse length (matched beam propagation) are obtained.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.2804703