NDLI: Theoretical Analysis of Pulsed Photoacoustic Effect in Solids

Content Provider	Springer Nature Link
Author	Domawska, Alina Bukowski, Roman J.
Copyright Year	2009
Abstract	This article presents a one-dimensional theory of a photoacoustic cell, working in the pulse regime. A four-layer system with elements of finite thickness has been assumed to represent consecutive parts of the photoacoustic cell. A parabolic heat equation with an instantaneous, bulk heat source has been solved using the Fourier transform of spatial coordinates. The theory allows one to assume that a heat source is existing in every part of the system and that an arbitrary time profile of the initial pulse is applied. Consequently, the system can be treated as an arbitrary photothermic or photoacoustic one-dimensional system. As a result, one obtains temperature profiles in the entire system at any time instant after its excitation with a light pulse. The gas-pressure evolution is dependent on the thermal and optical properties of the sample, the cell geometry, and duration and shape of the initial pulse.
Starting Page	1536
Ending Page	1556
Page Count	21
File Format	PDF
ISSN	0195928X
Journal	International Journal of Thermophysics
Volume Number	30
Issue Number	5
e-ISSN	15729567
Language	English
Publisher	Springer US
Publisher Date	2009-09-02
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Heat-pulse propagation in solids Photoacoustic effect Piezo-, elasto-, and acousto-optical effects Thermo-optical and photothermal effects Physical Chemistry Mechanics Condensed Matter Physics Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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