Photothermal waves in anisotropic media
- 15 November 1987
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 62 (10) , 4065-4071
- https://doi.org/10.1063/1.339118
Abstract
The coupled 3-D thermoacoustic equations, describing wave propagation in anisotropic solids, are derived. While solutions to these equations predict the behavior of both thermal and acoustic waves, a specific formulation is presented for the analysis of thermal wave generation, and propagation, in the decoupled mode. The approach is based on a transfer function formalism, and can easily be adapted to accommodate external sources with arbitrary spatial distribution. Simulations pertaining to the case of thermal wave propagation in a semi-infinite sample, as well as a slab of material are presented. Results predict anisotropy-induced asymmetric field formation and thermal beam-steering effects.This publication has 12 references indexed in Scilit:
- Photothermal Generation of Thermoelastic Waves in Composite MediaIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1986
- Photothermal displacement spectroscopy: An optical probe for solids and surfacesApplied Physics A, 1983
- Photodisplacement spectroscopy of solids: theoryApplied Optics, 1983
- Thermal-wave depth profiling: TheoryJournal of Applied Physics, 1982
- Photothermal deflection spectroscopy and detectionApplied Optics, 1981
- Photothermal spectroscopy using optical beam probing: Mirage effectJournal of Applied Physics, 1980
- Piezoelectric photoacoustic detection: Theory and experimentJournal of Applied Physics, 1980
- Generalized theory of the photoacoustic effectJournal of Applied Physics, 1978
- Theory of the photoacoustic effect with solidsJournal of Applied Physics, 1976
- Generation of Elastic Waves by Transient Surface HeatingJournal of Applied Physics, 1963