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

O. Eyal, V. Scharf, A. Katzir

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)5945-5950
Number of pages6
JournalApplied Optics
Issue number25
StatePublished - 1 Sep 1998


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