Photopyroelectric thermal-wave tomography of aluminum with ray-optic reconstruction
- 1 December 1991
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America A
- Vol. 8 (12) , 1851-1858
- https://doi.org/10.1364/josaa.8.001851
Abstract
A capacitive photopyroelectric tomographic technique for obtaining spatial and depth-resolved photothermal scanning images of opaque solid samples is reported. Unlike the two-dimensional projection images obtained by conventional photothermal detection methods, tomographic reconstruction for depth-resolved imaging of subsurface defects is demonstrated to be possible with the assumption of raylike propagation of thermal waves.Keywords
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