10.6 Micrometer Absorption in Molybdenum Mirrors

Abstract

Absorption of laser light is a fundamental and important mechanism of heat transfer into molybdenum which is used extensively in high intensity lasers. This paper discusses properties of molybdenum and the effects of surface finish on the absorption of bare, silver coated, and gold coated molybdenum mirrors. Mirror characterization includes 10.6 micrometer absorption and/or reflectivity, surface roughness, phase-contrast microscopy, pulse and preliminary carbon dioxide CW laser damage studies. Interferometric versus stylus instrument measurement of surface roughness is discussed. The polishing and coating procedures are described. Some limited characterization of high intensity laser operational mirrors is also included.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1974
Accession Number
ADA014323

Entities

People

  • T. T. Saito

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Chemistry
  • Coatings
  • Films
  • Finishes
  • Fungi
  • Heat Transfer
  • Laser Beams
  • Laser Mirrors
  • Lasers
  • Measurement
  • Metal Coatings
  • Microscopes
  • Optical Properties
  • Reflectivity
  • Surface Roughness

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Surface Engineering/Surface Coating Technology.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy