Photothermal Measurement of Optical Surface Absorption Using Strain Transducers.

Abstract

We discuss the measurement of small optical surface absorption coefficients. A demonstration experiment was performed using a metallurgical strain gauge to measure 488 nm absorption on the surface of a glass plate. A strain of 10 to the minus 8th power resulted from absorption of 0.3 watts. The results are interpreted and the sensitivity of a proposed fiber optic strain gauge is discussed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 15, 1981
Accession Number
ADA104745

Entities

People

  • D. H. Leslie
  • G. L. Trusty

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Climate Change
  • Coefficients
  • Detection
  • Detectors
  • Fibers
  • Lasers
  • Materials
  • Measurement
  • Microphones
  • Optical Detectors
  • Optical Fibers
  • Optics
  • Refractive Index
  • Spectroscopy
  • Strain Gages
  • Transducers

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Thin Film Deposition Science.