A Theory for the Enhancement of the Photoacoustic Signals by Volatile Liquids

Srinivasan, J and Kumar, R and Gandhi, KS (1987) A Theory for the Enhancement of the Photoacoustic Signals by Volatile Liquids. In: Applied Physics B: Lasers and Optics, 43 (1). pp. 35-41.

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Abstract

It has been shown experimentally that photoacoustic signals can be enhanced by introduction of a volatile liquid into the cell. Korpiun developed a theory which predicted the enhancement to be proportional to the mole fraction of the volatile component $(y_0)$ in the gas phase. His theory is, however, based on a species conservation equation valid for dilute solutions only. We present a rigorous theory for predicting the enhancement of potoacoustic signal. Our theory shows the enhancement to be proportional to $y_0/(1-y_0)$ which compares well with observations of Ganguly and Somasundaram.

Item Type:	Journal Article
Publication:	Applied Physics B: Lasers and Optics
Publisher:	Springer
Additional Information:	Copyright for this article belongs to Springer.
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	08 May 2008
Last Modified:	19 Sep 2010 04:44
URI:	http://eprints.iisc.ac.in/id/eprint/13879

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