Acta Optica Sinica, Volume. 17, Issue 9, 1195(1997)
Theory and Experiments on the Photoacoustic Effect in Three Layer Solids
The Rosencwaig Gersho theory of the photoacoustic effect is extended to the case of three layer solids. The general expression for the complex amplitude of the periodic temperature at the solid gas boundary is obtained. The phase and relative magnitude of the photoacoustic signal varying with chopping frequency for varies optical absorption coefficients, thermal conductivity coefficients and material depths are numeralty calculated and compared with the experimental results.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Theory and Experiments on the Photoacoustic Effect in Three Layer Solids[J]. Acta Optica Sinica, 1997, 17(9): 1195