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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 6, Iss. 12 — Dec. 1, 1981
  • pp: 619–621

Measurement of optical coupling coefficients based on thermal expansion

S. C. Seitel, J. O. Porteus, and W. N. Faith  »View Author Affiliations


Optics Letters, Vol. 6, Issue 12, pp. 619-621 (1981)
http://dx.doi.org/10.1364/OL.6.000619


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Abstract

A fundamentally new method for measuring optical coupling coefficients is described. A sample of a particular shape is subjected to a fixed tensile load and heated with pulsed optical radiation. The resulting peak tensile relaxation is proportional to the total absorbed energy; evolution of the coupling coefficient may thus be observed. A prototype system was constructed, and coupling coefficients were measured as a function of incident energy for CO2 laser pulses on bare and painted aluminum surfaces. With a sample of known absorptance and thermal properties, the system functions as a sensitive, fast-response, absolute-energy-measurement device.

© 1981 Optical Society of America

History
Original Manuscript: September 14, 1981
Published: December 1, 1981

Citation
S. C. Seitel, J. O. Porteus, and W. N. Faith, "Measurement of optical coupling coefficients based on thermal expansion," Opt. Lett. 6, 619-621 (1981)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-6-12-619

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