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Title: Enhanced laser beam coupling to a plasma

Abstract

Density perturbations are induced in a heated plasma by means of a pair of oppositely directed, polarized laser beams of the same frequency. The wavelength of the density perturbations is equal to one half the wavelength of the laser beams. A third laser beam is linearly polarized and directed at the perturbed plasma along a line that is perpendicular to the direction of the two opposed beams. The electric field of the third beam is oriented to lie in the plane containing the three beams. The frequency of the third beam is chosen to cause it to interact resonantly with the plasma density perturbations, thereby efficiently coupling the energy of the third beam to the plasma.

Inventors:
 [1];  [2]
  1. Pleasanton, CA
  2. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
862720
Patent Number(s):
3995136
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
G - PHYSICS G21 - NUCLEAR PHYSICS G21B - FUSION REACTORS
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
enhanced; laser; beam; coupling; plasma; density; perturbations; induced; heated; means; pair; oppositely; directed; polarized; beams; frequency; wavelength; equal; half; third; linearly; perturbed; line; perpendicular; direction; opposed; electric; field; oriented; lie; plane; containing; chosen; interact; resonantly; efficiently; energy; oppositely directed; plasma density; laser beams; electric field; laser beam; linearly polarized; polarized laser; density perturbations; enhanced laser; beam coupling; /219/376/

Citation Formats

Steiger, Arno D, and Woods, Cornelius H. Enhanced laser beam coupling to a plasma. United States: N. p., 1976. Web.
Steiger, Arno D, & Woods, Cornelius H. Enhanced laser beam coupling to a plasma. United States.
Steiger, Arno D, and Woods, Cornelius H. Thu . "Enhanced laser beam coupling to a plasma". United States. https://www.osti.gov/servlets/purl/862720.
@article{osti_862720,
title = {Enhanced laser beam coupling to a plasma},
author = {Steiger, Arno D and Woods, Cornelius H},
abstractNote = {Density perturbations are induced in a heated plasma by means of a pair of oppositely directed, polarized laser beams of the same frequency. The wavelength of the density perturbations is equal to one half the wavelength of the laser beams. A third laser beam is linearly polarized and directed at the perturbed plasma along a line that is perpendicular to the direction of the two opposed beams. The electric field of the third beam is oriented to lie in the plane containing the three beams. The frequency of the third beam is chosen to cause it to interact resonantly with the plasma density perturbations, thereby efficiently coupling the energy of the third beam to the plasma.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

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