Determining HF Mirror Reflectances with the Cavity Phase-Shift Method.

Abstract

Current work with the cavity phase shift (CAPS) method concentrates on Hydrogen Fluoride laser wavelengths between 2.6 and 3.0 micrometers. This method and continued advancements in experimental techniques are described. With use of a cavity dither the accuracy of reflectance measurements has been improved over previous work to + or - 0.0004 for reflectances around 0.995. Results of measurements on dielectric coated elements are reported, as are studies on metallic monolayers placed on nontransmitting substrates. The required CAPS configuration in these cases is a three-mirror arrangement that permits angle of incidence variation. In this mode the CAPS method becomes a technique for verifying the quality of optical coatings on particular resonator designs. Keywords: Laser applications; Midinfrared optics; Optical component metrology; Reflectance measurement.

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1986
Accession Number
ADA169694

Entities

People

  • M. A. Kwok
  • R. H. Ueunten

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Coatings
  • Compound Semiconductors
  • Frequency
  • Hydrogen Fluoride Lasers
  • Laser Applications
  • Laser Beams
  • Lasers
  • Materials
  • Measurement
  • Optical Coatings
  • Optomechanics
  • Phase Shift
  • Radiation
  • Reflectance
  • Substrates

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy