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Title: Modulation instability of laser pulse in magnetized plasma

Abstract

Modulation instability of a laser pulse propagating through transversely magnetized underdense plasma is studied. It is observed that interaction of laser radiation with plasma in the presence of uniform magnetic field results in an additional perturbed transverse plasma current density along with the relativistic and ponderomotive nonlinear current densities, thus affecting the modulational interaction. In the plane wave limit it is observed that modulational interaction is more stable for magnetized plasma as compared to the unmagnetized case. The analysis shows that there is a significant reduction in the growth rate of modulation instability over a given range of unstable wave numbers due to magnetization of plasma.

Authors:
; ; ;  [1]
  1. Department of Physics, University of Lucknow, Lucknow-226007 (India)
Publication Date:
OSTI Identifier:
20782407
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 12; Journal Issue: 12; Other Information: DOI: 10.1063/1.2141399; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CHARGED-PARTICLE TRANSPORT; CURRENT DENSITY; ELECTRIC CURRENTS; INSTABILITY; LASER RADIATION; LASERS; LIGHT TRANSMISSION; MAGNETIC FIELDS; MAGNETIZATION; MODULATION; NONLINEAR PROBLEMS; PONDEROMOTIVE FORCE; PULSES; RELATIVISTIC PLASMA

Citation Formats

Jha, Pallavi, Kumar, Punit, Raj, Gaurav, and Upadhyaya, Ajay K. Modulation instability of laser pulse in magnetized plasma. United States: N. p., 2005. Web. doi:10.1063/1.2141399.
Jha, Pallavi, Kumar, Punit, Raj, Gaurav, & Upadhyaya, Ajay K. Modulation instability of laser pulse in magnetized plasma. United States. doi:10.1063/1.2141399.
Jha, Pallavi, Kumar, Punit, Raj, Gaurav, and Upadhyaya, Ajay K. Thu . "Modulation instability of laser pulse in magnetized plasma". United States. doi:10.1063/1.2141399.
@article{osti_20782407,
title = {Modulation instability of laser pulse in magnetized plasma},
author = {Jha, Pallavi and Kumar, Punit and Raj, Gaurav and Upadhyaya, Ajay K.},
abstractNote = {Modulation instability of a laser pulse propagating through transversely magnetized underdense plasma is studied. It is observed that interaction of laser radiation with plasma in the presence of uniform magnetic field results in an additional perturbed transverse plasma current density along with the relativistic and ponderomotive nonlinear current densities, thus affecting the modulational interaction. In the plane wave limit it is observed that modulational interaction is more stable for magnetized plasma as compared to the unmagnetized case. The analysis shows that there is a significant reduction in the growth rate of modulation instability over a given range of unstable wave numbers due to magnetization of plasma.},
doi = {10.1063/1.2141399},
journal = {Physics of Plasmas},
number = 12,
volume = 12,
place = {United States},
year = {Thu Dec 15 00:00:00 EST 2005},
month = {Thu Dec 15 00:00:00 EST 2005}
}
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