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Investigations of stimulated Raman scattering from high-density underdense plasmas irradiated by a 0. 35-micron laser

Thesis/Dissertation ·
OSTI ID:7171552
Studies of stimulated Raman back and forward scattering and the generation of high-energy electrons at 0.35 microns are presented. To isolate the various phenomena occurring at different densities, attempts were made to control the plasma density by varying the thickness of the foil targets and also by using foam targets of variable average density. The frequency of the scattered light is used as a diagnostic to measure the plasma density. Time-resolved and time-integrated spectra for various plasma densities are discussed. Also, the measured energy and angular distribution of the high-energy electrons from foil targets are presented. Two-plasmon decay is suggested as the probable mechanism generating the hot electrons.
Research Organization:
California Univ., Los Angeles (USA)
OSTI ID:
7171552
Country of Publication:
United States
Language:
English