Determination of the Optical Constants of Thin Films Using Photoacoustic Spectroscopy
- 1 September 1981
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 20 (9) , L665
- https://doi.org/10.1143/jjap.20.l665
Abstract
We have theoretically derived the photoacoustic signal of thin films accounting for the multiple-reflection effect, and presented the simple analytical procedure for determining the detailed information on the thermal parameters of the material. The PAS has been employed on a-Si:H films and the optical absorption spectra down to 1 cm-1 were obtained, which is crucially discussed in comparison with the data by the transmission method.Keywords
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