Abstract

The Rosencwaig-Gersho equation for the photoacoustic signal is recast in a manner that emphasizes the crucial role thermal wave interference plays in the production of the photoacoustic signal. This formalism is then used to suggest a technique for extracting thermal information from the structure in the photoacoustic signal resulting from thermal wave interference. Experimental measurements illustrating this technique are presented.

© 1982 Optical Society of America

Photoacoustic chopping frequency studies on uncoated zinc selenide

Nils C. Fernelius
Appl. Opt. 21(3) 481-490 (1982)

Theory of the photoacoustic effect in semiconductors influence of carrier diffusion and recombination

L. C. M. Miranda
Appl. Opt. 21(16) 2923-2928 (1982)

Photoacoustic study of surface plasmons in metals

T. Inagaki, K. Kagami, and E. T. Arakawa
Appl. Opt. 21(5) 949-954 (1982)

Photoacoustic observation of thermal wave interference effects in thin samples

C. A. Bennett and R. R. Patty
Appl. Opt. 20(6) A60-911 (1981)

Extended Helmholtz resonator in low-temperature photoacoustic spectroscopy

J. Pelzl, K. Klein, and O. Nordhaus
Appl. Opt. 21(1) 94-99 (1982)