Photopyroelectric spectroscopy in the presence of an air gap transparent phase-shifter
Date
1996ISSN
0946-2171Source
Applied Physics B-Lasers and OpticsVolume
62Issue
6Pages
563-574Google Scholar check
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This paper presents a theoretical analysis of a two-layered pyroelectric detector which can be used in photopyroelectric spectroscopy where one of the two layers is an air gap. The analysis was performed using a recently developed one-dimensional two-layer-model. It was shown theoretically and numerically that the presence of an air gap between the substrate and the pyroelectric material simplifies the photopyroelectric spectroscopic technique.