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Title: Photoacoustic frequency-domain depth profiling of continuously inhomogeneous condensed phases - theory and simulations for the inverse problem
Authors: Mandelis, A
Peralta, Sb
Thoen, Jan #
Issue Date: Aug-1991
Publisher: Amer inst physics
Series Title: Journal of Applied Physics vol:70 issue:3 pages:1761-1770
Abstract: An application is presented of the Hamilton-Jacobi formulation of thermal-wave physics [A. Mandelis, J. Math. Phys. 26, 2676 (1985)] to the problem of photoacoustic depth profiling of inhomogeneous solids with arbitrary, continuously varying thermal diffusivity profiles. Simple expressions for the modulation frequency dependence of the photoacoustic signal in the case of exponential thermal diffusivity profiles are obtained, and a working general method for solving the inverse problem and obtaining arbitrary diffusivity depth profiles is demonstrated through computer simulations. The method was found to possess excellent profile reconstruction fidelity.
URI: 
ISSN: 0021-8979
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Soft Matter and Biophysics
# (joint) last author

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