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Title: Numerical Investigation of the Rippling Effect at the Interaction of an Ultrashort Laser Pulse with Inhomogeneous Plasma

Abstract

The interaction of ps and fs laser pulses of subrelativistic intensity ({approx}1016-1017 W/cm2) with inhomogeneous plasma was studied using a two-fluid hydrodynamic computer code. It was found that action of ponderomotive forces induced by the laser pulse near the plasma critical surface results in the ion density rippling of characteristic life time {approx}10-11 s. The rippling effect is the cause of back reflection of the laser pulse and leads to a strong decrease in the efficiency of energy transfer to plasma. This effect can be significantly suppresed by use of the laser radiation composed of some (>2) slightly different wavelengths or with the use of nonmonochromatic radiation. In the range of subrelativistic laser intensities the rippling effect does not appear for laser pulses shorter than {approx}100 fs.

Authors:
; ;  [1];  [2]
  1. Institute of Plasma Physics and Laser Microfusion, 23 Hery St., 00-908 Warsaw (Poland)
  2. Deparmtent of Theoretical Physics, University of New South Wales, Sydney 2052 (Australia)
Publication Date:
OSTI Identifier:
20797926
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 812; Journal Issue: 1; Conference: PLASMA 2005: International conference on research and applications of plasmas; 3. German-Polish conference on plasma diagnostics for fusion and applications; 5. French-Polish seminar on thermal plasma in space and laboratory, Opole-Turawa (Poland), 6-9 Sep 2005; Other Information: DOI: 10.1063/1.2168851; (c) 2006 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; COMPUTER CODES; EFFICIENCY; ENERGY TRANSFER; INHOMOGENEOUS PLASMA; ION DENSITY; LASER RADIATION; LASER-PRODUCED PLASMA; LASERS; PLASMA HEATING; PLASMA PRODUCTION; PLASMA SIMULATION; PONDEROMOTIVE FORCE; PULSES; REFLECTION

Citation Formats

Jablonski, S., Glowacz, S., Badziak, J., and Hora, H. Numerical Investigation of the Rippling Effect at the Interaction of an Ultrashort Laser Pulse with Inhomogeneous Plasma. United States: N. p., 2006. Web. doi:10.1063/1.2168851.
Jablonski, S., Glowacz, S., Badziak, J., & Hora, H. Numerical Investigation of the Rippling Effect at the Interaction of an Ultrashort Laser Pulse with Inhomogeneous Plasma. United States. doi:10.1063/1.2168851.
Jablonski, S., Glowacz, S., Badziak, J., and Hora, H. Sun . "Numerical Investigation of the Rippling Effect at the Interaction of an Ultrashort Laser Pulse with Inhomogeneous Plasma". United States. doi:10.1063/1.2168851.
@article{osti_20797926,
title = {Numerical Investigation of the Rippling Effect at the Interaction of an Ultrashort Laser Pulse with Inhomogeneous Plasma},
author = {Jablonski, S. and Glowacz, S. and Badziak, J. and Hora, H.},
abstractNote = {The interaction of ps and fs laser pulses of subrelativistic intensity ({approx}1016-1017 W/cm2) with inhomogeneous plasma was studied using a two-fluid hydrodynamic computer code. It was found that action of ponderomotive forces induced by the laser pulse near the plasma critical surface results in the ion density rippling of characteristic life time {approx}10-11 s. The rippling effect is the cause of back reflection of the laser pulse and leads to a strong decrease in the efficiency of energy transfer to plasma. This effect can be significantly suppresed by use of the laser radiation composed of some (>2) slightly different wavelengths or with the use of nonmonochromatic radiation. In the range of subrelativistic laser intensities the rippling effect does not appear for laser pulses shorter than {approx}100 fs.},
doi = {10.1063/1.2168851},
journal = {AIP Conference Proceedings},
number = 1,
volume = 812,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}
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