A novel technique for enhancing photoacoustic signals from solids
作者:
P. Ganguly,
T. Somasundaram,
期刊:
Applied Physics Letters
(AIP Available online 1983)
卷期:
Volume 43,
issue 2
页码: 160-162
ISSN:0003-6951
年代: 1983
DOI:10.1063/1.94265
出版商: AIP
数据来源: AIP
摘要:
Enhancement of the photoacoustic signal from condensed materials by several folds is achieved by the introduction of a liquid with high vapor pressure in the photoacoustic cell. The enhancement is especially marked for low absorption coefficients and high chopping frequencies. Typically the enhancement is two to nine times in the presence of diethyl ether at 293 K. A linear relationship is observed between the enhancement and the vapor pressure of the liquid.
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