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Applied Optics

Applied Optics


  • Vol. 37, Iss. 25 — Sep. 1, 1998
  • pp: 5945–5950

Fiber-optic pulsed photothermal radiometry for fast surface-temperature measurements

O. Eyal, V. Scharf, and A. Katzir  »View Author Affiliations

Applied Optics, Vol. 37, Issue 25, pp. 5945-5950 (1998)

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Temperature measurement based on pulsed photothermal radiometry is described. In this technique a body is irradiated by a laser pulse and its temperature is inferred from the shape of the emitted photothermal-signal curve. A prototypical system based on a pulsed CO2 laser, an IR detector, and IR-transmitting silver halide optical fibers was constructed and used to evaluate the feasibility of this technique. An important feature of the technique is that changes in sample emissivity or geometric factors do not introduce errors in the temperature determination. Theory, simulation, and experimental results are given and discussed.

© 1998 Optical Society of America

OCIS Codes
(040.3060) Detectors : Infrared
(060.2390) Fiber optics and optical communications : Fiber optics, infrared
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(120.6780) Instrumentation, measurement, and metrology : Temperature

Original Manuscript: April 3, 1998
Published: September 1, 1998

O. Eyal, V. Scharf, and A. Katzir, "Fiber-optic pulsed photothermal radiometry for fast surface-temperature measurements," Appl. Opt. 37, 5945-5950 (1998)

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