Accession Number:

ADA023269

Title:

Studies of Laser Damage Phenomena in Materials.

Descriptive Note:

Interim rept. 1 Nov 74-31 Oct 75,

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s):

Report Date:

1976-01-15

Pagination or Media Count:

72.0

Abstract:

Research was completed on the analysis of plasma expansion and momentum transfer at the surface of laser-irradiated targets. Experiments were then conducted on mixed and single crystal KC1 samples to assess the influence of high-energy electrons on the infrared absorption at 10.6 micrometers. The studies included simultaneous CW electron and F-light irradiation to determine the correlation between F-aggregate centers and infrared absorption. In addition, during this period, studies were completed on the identification of scatter and absorption sites responsible for the decreased infrared transmission in polycrystalline ZnSe samples. Preparations have also been made for irrdiations of a variety of prototype laser windows, supplied by the Air Force Materials Laboratory, at the NASA-Ames 40 kW CO2 laser facility. This report summarizes progress in these and other areas. Author

Subject Categories:

  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE