Photoacoustic effect with thermally thin solids
- 15 April 1980
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 36 (8) , 641-643
- https://doi.org/10.1063/1.91609
Abstract
Photoacoustic signals from opaque thermally thin solids (Ni, Al, and SiC) with a gas backing have an ω−3/2 frequency dependence. This first experimental observation of such a dependence from thin solids is in excellent agreement with the Rosencwaig‐Gersho theory when a low‐conductivity backing material is considered, but in disagreement with predictions based on the theory of Cesar et al. Surface heat conductance is determined by molecular collisions with the surface and not by blackbody radiative transfer.Keywords
This publication has 4 references indexed in Scilit:
- Photoacoustic Effect in SolidsPhysical Review Letters, 1979
- Surface and subsurface structure of solids by laser photoacoustic spectroscopyApplied Physics Letters, 1978
- Size considerations in the design of cells for photoacoustic spectroscopyJournal of Applied Physics, 1977
- Theory of the photoacoustic effect with solidsJournal of Applied Physics, 1976