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Title: Numerical modeling of quasitransient backward Raman amplification of laser pulses in moderately undercritical plasmas with multicharged ions

Abstract

It was proposed recently that powerful optical laser pulses could be efficiently compressed through backward Raman amplification in ionized low density solids, in spite of strong damping of the resonant Langmuir wave. It was argued that, even for nonsaturated Landau damping of the Langmuir wave, the energy transfer from the pump laser pulse to the amplified seed laser pulse can nevertheless be highly efficient. This work numerically examines such regimes of strong damping, called quasitransient regimes, within the simplest model that takes into account the major effects. The simulations indicate that compression of powerful optical laser pulses in ionized low density solids indeed can be highly efficient.

Authors:
;  [1];  [2];  [3];  [2]
  1. Institute of Applied Physics RAS, Nizhnii Novgorod 603950 (Russian Federation)
  2. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
  3. Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540 (United States)
Publication Date:
OSTI Identifier:
22046954
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 18; Journal Issue: 10; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ENERGY TRANSFER; LANDAU DAMPING; LASER RADIATION; LASER-PRODUCED PLASMA; LASERS; LIGHT TRANSMISSION; MULTICHARGED IONS; NUMERICAL ANALYSIS; PLASMA SIMULATION; PLASMA WAVES; PULSES; SOLID-STATE PLASMA

Citation Formats

Balakin, A A, Fraiman, G M, Fisch, N J, Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540, Malkin, V M, and Toroker, Z. Numerical modeling of quasitransient backward Raman amplification of laser pulses in moderately undercritical plasmas with multicharged ions. United States: N. p., 2011. Web. doi:10.1063/1.3650074.
Balakin, A A, Fraiman, G M, Fisch, N J, Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540, Malkin, V M, & Toroker, Z. Numerical modeling of quasitransient backward Raman amplification of laser pulses in moderately undercritical plasmas with multicharged ions. United States. https://doi.org/10.1063/1.3650074
Balakin, A A, Fraiman, G M, Fisch, N J, Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540, Malkin, V M, and Toroker, Z. Sat . "Numerical modeling of quasitransient backward Raman amplification of laser pulses in moderately undercritical plasmas with multicharged ions". United States. https://doi.org/10.1063/1.3650074.
@article{osti_22046954,
title = {Numerical modeling of quasitransient backward Raman amplification of laser pulses in moderately undercritical plasmas with multicharged ions},
author = {Balakin, A A and Fraiman, G M and Fisch, N J and Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540 and Malkin, V M and Toroker, Z},
abstractNote = {It was proposed recently that powerful optical laser pulses could be efficiently compressed through backward Raman amplification in ionized low density solids, in spite of strong damping of the resonant Langmuir wave. It was argued that, even for nonsaturated Landau damping of the Langmuir wave, the energy transfer from the pump laser pulse to the amplified seed laser pulse can nevertheless be highly efficient. This work numerically examines such regimes of strong damping, called quasitransient regimes, within the simplest model that takes into account the major effects. The simulations indicate that compression of powerful optical laser pulses in ionized low density solids indeed can be highly efficient.},
doi = {10.1063/1.3650074},
url = {https://www.osti.gov/biblio/22046954}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 10,
volume = 18,
place = {United States},
year = {2011},
month = {10}
}