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Optics Letters

Optics Letters


  • 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)

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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

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

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)

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  1. P. A. Temple, Nat. Bur. Stand. (U.S.) Spec. Publ. 574, 194 (1980).
  2. J. A. McKay et al., J. Appl. Phys. 50, 3231 (1979). [CrossRef]
  3. S. Marcus, J. E. Lowder, D. L. Mooney, J. Appl. Phys. 47, 2966 (1976). [CrossRef]
  4. W. E. Maher, R. B. Hall, J. Appl. Phys. 49, 2254 (1978). [CrossRef]
  5. J. O. Porteus et al., Nat. Bur. Stand. (U.S.) Spec. Publ. 509, 204 (1977).
  6. P. A. Temple, Physics Division, Michelson Laboratory, Naval Weapons Center, China Lake, California 93555 (personal communication).

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