Optical scattering measurements from 1.06 microns and 0.35 microns laser heated targets
Abstract
Scattered light measurements were obtained on Argus disk target experiments at 1.06 micrometer, 0.53 micrometer, and 0.35 micrometer laser wavelengths. Backscatter measurements taken near the three laser wavelengths for SBS, and measurements of the three-halves and second harmonics taken during the two longer wavelength laser irradiations are presented. The SBS measurements show the strong influence of the increased absorption at the shorter laser wavelengths. The spectra of the three-halves harmonic emissions are analyzed to provide a time averaged electron temperature at quarter critical density. Time resolved Raman scattering data are presented for gold and Be disks irradiated with up to 180 J of green light.
- Publication:
-
Presented at the Am. Phys. Soc. 23rd Ann. Meeting
- Pub Date:
- October 1981
- Bibcode:
- 1981aps..meet...12T
- Keywords:
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- Backscattering;
- Laser Targets;
- Light Scattering;
- Optical Measurement;
- Raman Spectra;
- Absorption Spectra;
- Beryllium;
- Electron Energy;
- Gold;
- Harmonic Radiation;
- Spectral Emission;
- Optics