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Title: An analytical study of non-resonant transient cross-beam power transfer relevant to recent progress in plasma photonics

Abstract

Recent experimental and theoretical results have shown that crossing a probe laser in a plasma with a secondary pump can modify the amplitude, phase, and polarization of the probe in a controlled manner. Beyond fundamental physics, these results suggest that a pump-plasma based optical system could be used to amplify and control a laser pulse at high power, where the high fluence precludes using an optical system. This paper attempts to clarify the transient regime of such a pump-probe-plasma system. An analytical solution is derived to the coupled equations in the relevant regime, valid for any frequency detuning, coupling strength, and damping. Asymptotic expressions in the scantly studied off-resonance regime are derived. The time to reach the steady state is found to be roughly independent of the detuning. This time-to-steady-state defines the response time of such a plasma photonics system and can be made potentially much faster than traditional optics by controlling the damping of plasma acoustic waves. Here, we comment on the steady-state assumption typically used to interpret current experiments and design future ones.

Authors:
 [1]; ORCiD logo [2];  [1]; ORCiD logo [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Univ. of Rochester, Rochester, NY (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1545364
Alternate Identifier(s):
OSTI ID: 1505254; OSTI ID: 1548389
Report Number(s):
LLNL-JRNL-766152
Journal ID: ISSN 1070-664X
Grant/Contract Number:  
AC52-07NA27344; 16-LW-022
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 26; Journal Issue: 4; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Lasers

Citation Formats

Divol, L., Turnbull, D. P., Chapman, T., Goyon, C., and Michel, P. An analytical study of non-resonant transient cross-beam power transfer relevant to recent progress in plasma photonics. United States: N. p., 2019. Web. doi:10.1063/1.5090266.
Divol, L., Turnbull, D. P., Chapman, T., Goyon, C., & Michel, P. An analytical study of non-resonant transient cross-beam power transfer relevant to recent progress in plasma photonics. United States. doi:10.1063/1.5090266.
Divol, L., Turnbull, D. P., Chapman, T., Goyon, C., and Michel, P. Fri . "An analytical study of non-resonant transient cross-beam power transfer relevant to recent progress in plasma photonics". United States. doi:10.1063/1.5090266.
@article{osti_1545364,
title = {An analytical study of non-resonant transient cross-beam power transfer relevant to recent progress in plasma photonics},
author = {Divol, L. and Turnbull, D. P. and Chapman, T. and Goyon, C. and Michel, P.},
abstractNote = {Recent experimental and theoretical results have shown that crossing a probe laser in a plasma with a secondary pump can modify the amplitude, phase, and polarization of the probe in a controlled manner. Beyond fundamental physics, these results suggest that a pump-plasma based optical system could be used to amplify and control a laser pulse at high power, where the high fluence precludes using an optical system. This paper attempts to clarify the transient regime of such a pump-probe-plasma system. An analytical solution is derived to the coupled equations in the relevant regime, valid for any frequency detuning, coupling strength, and damping. Asymptotic expressions in the scantly studied off-resonance regime are derived. The time to reach the steady state is found to be roughly independent of the detuning. This time-to-steady-state defines the response time of such a plasma photonics system and can be made potentially much faster than traditional optics by controlling the damping of plasma acoustic waves. Here, we comment on the steady-state assumption typically used to interpret current experiments and design future ones.},
doi = {10.1063/1.5090266},
journal = {Physics of Plasmas},
number = 4,
volume = 26,
place = {United States},
year = {2019},
month = {4}
}

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This content will become publicly available on April 5, 2020
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