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Title: Laser-plasma interactions in magnetized environment

Abstract

Propagation and scattering of lasers present new phenomena and applications when the plasma medium becomes strongly magnetized. With mega-Gauss magnetic fields, scattering of optical lasers already becomes manifestly anisotropic. Special angles exist where coherent laser scattering is either enhanced or suppressed, as we demonstrate using a cold-fluid model. Consequently, by aiming laser beams at special angles, one may be able to optimize laser-plasma coupling in magnetized implosion experiments. In addition, magnetized scattering can be exploited to improve the performance of plasma-based laser pulse amplifiers. Using the magnetic field as an extra control variable, it is possible to produce optical pulses of higher intensity, as well as compress UV and soft x-ray pulses beyond the reach of other methods. In even stronger giga-Gauss magnetic fields, laser-plasma interaction enters a relativistic-quantum regime. Using quantum electrodynamics, we compute a modified wave dispersion relation, which enables correct interpretation of Faraday rotation measurements of strong magnetic fields.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [1]
  1. Princeton Univ., NJ (United States). Dept. of Astrophysical Sciences; Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  2. Princeton Univ., NJ (United States). Dept. of Astrophysical Sciences; Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Univ. of Science and Technology of China, Hefei (China). School of Nuclear Science and Technology and Dept. of Modern Physics
Publication Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); US Air Force Office of Scientific Research (AFOSR)
OSTI Identifier:
1465664
Alternate Identifier(s):
OSTI ID: 1426022
Grant/Contract Number:  
AC02-09CH11466; FA9550-15-1-0391; NA0002948
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 25; Journal Issue: 5; 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; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; dispersion; Faraday effect; rotation measurement; control equipment; laser plasma interactions; x-rays; quantum effects; plasma density; quantum electrodynamics

Citation Formats

Shi, Yuan, Qin, Hong, and Fisch, Nathaniel J. Laser-plasma interactions in magnetized environment. United States: N. p., 2018. Web. doi:10.1063/1.5017980.
Shi, Yuan, Qin, Hong, & Fisch, Nathaniel J. Laser-plasma interactions in magnetized environment. United States. doi:10.1063/1.5017980.
Shi, Yuan, Qin, Hong, and Fisch, Nathaniel J. Wed . "Laser-plasma interactions in magnetized environment". United States. doi:10.1063/1.5017980.
@article{osti_1465664,
title = {Laser-plasma interactions in magnetized environment},
author = {Shi, Yuan and Qin, Hong and Fisch, Nathaniel J.},
abstractNote = {Propagation and scattering of lasers present new phenomena and applications when the plasma medium becomes strongly magnetized. With mega-Gauss magnetic fields, scattering of optical lasers already becomes manifestly anisotropic. Special angles exist where coherent laser scattering is either enhanced or suppressed, as we demonstrate using a cold-fluid model. Consequently, by aiming laser beams at special angles, one may be able to optimize laser-plasma coupling in magnetized implosion experiments. In addition, magnetized scattering can be exploited to improve the performance of plasma-based laser pulse amplifiers. Using the magnetic field as an extra control variable, it is possible to produce optical pulses of higher intensity, as well as compress UV and soft x-ray pulses beyond the reach of other methods. In even stronger giga-Gauss magnetic fields, laser-plasma interaction enters a relativistic-quantum regime. Using quantum electrodynamics, we compute a modified wave dispersion relation, which enables correct interpretation of Faraday rotation measurements of strong magnetic fields.},
doi = {10.1063/1.5017980},
journal = {Physics of Plasmas},
number = 5,
volume = 25,
place = {United States},
year = {Wed Mar 14 00:00:00 EDT 2018},
month = {Wed Mar 14 00:00:00 EDT 2018}
}

Journal Article:
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