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

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.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1972
Accession Number
AD0763795

Entities

People

  • R. W. Stewart

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Ceramic Materials
  • Electrical Conductivity
  • Electromagnetic Radiation
  • Finishes
  • Grain Size
  • Hardening
  • Hardness
  • Heat Treatment
  • Laser Applications
  • Laser Beams
  • Lasers
  • Measurement
  • Measuring Instruments
  • Optical Properties
  • Optics
  • Scattering
  • Surface Roughness

Fields of Study

  • Physics

Readers

  • Nuclear Civil Defense.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy