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Proceedings Paper

Thermal modeling in cavity-enhanced photothermal spectroscopy
Author(s): S. H. Chen; Zhuang Tang; Z. L. Rong; Hans A. Schuessler
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Paper Abstract

The quality-factor dependent enhancement of the field of a weak probe laser beam inside a resonant optical cavity is used to measure the minute optical absorption of liquid films, metallic and high reflectivity dielectric coatings. The measurement is not affected by the presence of the surface reflections and the scattering from the strong pump laser beam, which is focussed onto the sample placed inside the cavity. Laser surface heating calculations were performed and account qualitatively for both the spatial and temporal behavior of the observed signals.

Paper Details

Date Published: 1 July 1990
PDF: 3 pages
Proc. SPIE 1208, Laser Photoionization and Desorption Surface Analysis Techniques, (1 July 1990); doi: 10.1117/12.17885
Show Author Affiliations
S. H. Chen, Texas A&M Univ. (United States)
Zhuang Tang, Texas A&M Univ. (United States)
Z. L. Rong, Texas A&M Univ. (United States)
Hans A. Schuessler, Texas A&M Univ. (United States)

Published in SPIE Proceedings Vol. 1208:
Laser Photoionization and Desorption Surface Analysis Techniques
Nicholas S. Nogar, Editor(s)

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