Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-04T16:54:50.902Z Has data issue: false hasContentIssue false
  • English
  • Français

Computer simulation of laser-beam self-focusing in a plasma

Published online by Cambridge University Press:  01 April 1999

D. SUBBARAO ,
H. SINGH ,
R. UMA  and
S. BHASKAR
D. SUBBARAO
Affiliation:
Fusion Studies Program, Plasma Science and Technology Group, Centre for Energy Studies, Indian Institute of Technology (Delhi), New Delhi 110 016, India ([email protected])
H. SINGH
Affiliation:
Fusion Studies Program, Plasma Science and Technology Group, Centre for Energy Studies, Indian Institute of Technology (Delhi), New Delhi 110 016, India ([email protected]) Present address: Computer Applications R&D Group of NIIT Ltd, New Delhi.
R. UMA
Affiliation:
Fusion Studies Program, Plasma Science and Technology Group, Centre for Energy Studies, Indian Institute of Technology (Delhi), New Delhi 110 016, India ([email protected])
S. BHASKAR
Affiliation:
Fusion Studies Program, Plasma Science and Technology Group, Centre for Energy Studies, Indian Institute of Technology (Delhi), New Delhi 110 016, India ([email protected]) Motorola, Bangalore.
Get access Rights & Permissions [Opens in a new window]

Abstract

Laser-beam or soliton propagation is best modelled for fast computation using a split-step Fourier method based on an orthogonal transform technique known as the beam-propagation method. The beam-propagation split-step Fourier-transform technique in one and two dimensions for the propagation of a soliton or laser beam respectively in a nonlinear plasma and a split-step Hankel-transform-based algorithm for cylindrical-beam propagation close to circular cross-sectional symmetry and its computational implementation are discussed. Attention is particularly focused on the verification of the paraxial approximations of the soliton or the laser beam using these techniques, after a brief review of the beam-propagation method.

Type
Research Article
Information
Journal of Plasma Physics , Volume 61 , Issue 3 , April 1999 , pp. 449 - 467
Copyright
1999 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)