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Optical Engineering

Experimental And Theoretical Considerations In Thin-Film Laser Calorimetry
Author(s): P. A. Temple
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Paper Abstract

Laser calorimetry has been widely used to measure thin-film optical absorption in filmed substrates with total film-substrate system absorptance of 1 x 10-2 and below. This paper will discuss the advantages and disadvantages of the various types of calorimeters presently used to measure witness-size samples in the absorptance range of 1 x 10-2 to 1 x 10-5. Special emphasis will be given to single-layer films. Considered will be the implications of front versus back surface films, film thickness, film-substrate interface absorption, and laser coherence on the interpretation of the measured total absorptance. Throughout this paper, the main concern will be the errors present in calorimetric measurements.

Paper Details

Date Published: 1 June 1984
PDF: 5 pages
Opt. Eng. 23(3) doi: 10.1117/12.7973288
Published in: Optical Engineering Volume 23, Issue 3
Show Author Affiliations
P. A. Temple, Naval Weapons Center (United States)

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