Raman Amplification in Plasma: Thermal Effects

Journal Article · Thu Jan 22 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3080915· OSTI ID:21255229

Farmer, John; Ersfeld, Bernhard; Jaroszynski, Dino ^[1]

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1. Department of Physics, SUPA, University of Strathclyde, 107 Rottenrow East, Glasgow, G4 0NG (United Kingdom)

The impact of thermal effects on Raman amplification in plasma is investigated theoretically. It is shown that damping and the shift in plasma resonance at finite temperature can alter the evolution of the amplified pulse and lead to pulse compression which is not predicted by the cold plasma model. Although thermal effects can lead to a reduction in the efficiency of the interaction, this can be ameliorated by using a chirped pump. In this case thermal effects can be beneficial and suppress the development of the train of pulses that develops behind the amplified pulse, as observed in the cold plasma model.

• OSTI ID: 21255229
• Journal Information: AIP Conference Proceedings, Vol. 1086, Issue 1; Conference: 13. advanced accelerator concepts workshop, Santa Cruz, CA (United States), 27 Jul - 2 Aug 2008; Other Information: DOI: 10.1063/1.3080915; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFICATION
COLD PLASMA
COMPRESSION
LASERS
PULSES
PUMPS
RAMAN SPECTRA
RESONANCE
TEMPERATURE DEPENDENCE
THERMODYNAMICS