Open AccessLaser Plasma instability reduction by coherence disruption
Author(s) -
W. L. Kruer,
P. A. Amendt,
N. B. Meezan,
L J Suter
Publication year - 2006
Language(s) - English
Resource type - Reports
DOI - 10.2172/928547
Subject(s) - coherence (philosophical gambling strategy) , plasma , instability , brillouin scattering , laser , scattering , optics , saturation (graph theory) , atomic physics , coherence length , hohlraum , physics , light scattering , ruby laser , condensed matter physics , nuclear physics , quantum mechanics , superconductivity , mathematics , combinatorics
The saturation levels of stimulated scattering of intense laser light in plasmas and techniques to reduce these levels are of great interest. A simple model is used to highlight the dependence of the reflectivity on the coherence length for the density fluctuations producing the scattering. Sometimes the coherence lengths can be determined nonlinearly. For NIF hohlraum plasmas, a reduction in the coherence lengths might be engineered in several ways. Finally, electron trapping in ion sound waves is briefly examined as a potentially important effect for the saturation of stimulated Brillouin scattering