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Accession Number:
ADA235798
Title:
Reduction of Three-Halves Harmonic Emission from Laser-Produced Plasmas with Broadwidth Induced Spatial Incoherence at 0.53 micrometers
Descriptive Note:
Memorandum rept.
Corporate Author:
NAVAL RESEARCH LAB WASHINGTON DC
Report Date:
1991-05-24
Pagination or Media Count:
27.0
Abstract:
Measurements of the omega sub 02 emission from Laser irradiated targets at 0.53 microns were made at three angles over a wide range of Laser bandwidths with and without induced spatial incoherence ISI echelons. THe 3 microns2 emission was found to be correlated with hard x rays but not Raman spectra suggesting that the 3 omega sub 02 radiation was due to two plasmon decay. Reduction of both 3 omega sub 02 emission and the accompanying hard x rays by ISI required five to ten times Larger bandwidths than needed to suppress stimulated Raman scattering and stimulated Brilloin scattering.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE