Diamond Turning and Polishing of Copper Mirrors.

Abstract

This program was designed to investigate the surface properties of micromachined copper mirrors. A total of twenty-one mirrors were evaluated for total integrated scatter (wavelength = 6328A), surface roughness measurements using a FECO (fringes of equal chromatic order) interferometer, surface absorption measurements (wavelength = 10.6 micrometers), and surface figure (wavelength = 6328A). Mirror fabrication was divided into three phases: (1) micromachining and evaluation of seven copper mirrors, (2) micromachining and conventional polishing of seven mirrors, and (3) evaluation and conventional polishing of another vendor's micromachined mirrors. The results of this study show that micromachining copper mirrors produces low absorption surfaces (0.72 percent) at 10.6 micrometers, and polishing micromachined surfaces yields surfaces equivalent to conventionally ground and polished samples. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1976
Accession Number
ADA022810

Entities

People

  • John R. Kurdock

Tags

DTIC Thesaurus Topics

  • Absorption
  • Fabrication
  • Finishes
  • Interferometers
  • Manufacturing
  • Measurement
  • Measuring Instruments
  • Micromachining
  • Micrometers
  • Physical Properties
  • Polishing
  • Roughness
  • Surface Properties
  • Surface Roughness
  • Test And Evaluation

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Thin Film Deposition Science.