Accession Number:

AD0763795

Title:

Investigate Material Systems for Mirrors Used in High Power CO and CO2 Lasers

Descriptive Note:

Semiannual technical rept.

Corporate Author:

PACIFIC NORTHWEST LABS RICHLAND WA

Personal Author(s):

Report Date:

1972-12-01

Pagination or Media Count:

79.0

Abstract:

Results are presented from the first phase of a three-phase program sponsored by Advanced Research Projects Agency to develop a laser mirror material system. Copper, dispersion hardened with the addition of 0-5 vol SiC or Al2O3 was deposited by high-rate sputtering to produce a stable, fine-grain 0.4 micrometer polishable material exhibiting a surface roughness of less than 15 A rms when it was mechanically polished. Instruments for measuring surface roughness by scattered light and mirror absorption by differential calorimetry were also designed, constructed, and successfully employed in measuring surface properties and mirror optical absorption.

Subject Categories:

  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE