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Three Wavelength Coupling for Fusion Capsule Hohlraums

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
Using three tunable wavelengths on different cones of laser beams the energy transfer between beams can be tuned to redistribute the energy within the cones of beams most prone to backscatter instabilities. Using a third wavelength provides a greater level of control of the laser energy distribution and coupling in the hohlraum, to significantly reduce stimulated Raman scattering losses and increase the hohlraum radiation drive, yet maintain implosion symmetry.
Moses, Edward I. (Livermore, CA), Glenzer, Siegfried H. (Oakland, CA), Michel, Pierre A. (Oakland, CA), Divol, Laurent (San Francisco, CA), MacGowan, Brian J. (San Francisco, CA)
Lawrence Livermore National Security, LLC (Livermore CA)
13/ 108,895
May 16, 2011
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC.