Thermoacoustic Microscopy Using Optical Excitation And Detection

B. Cretin; D. Hauden

doi:10.1117/12.941497

3 August 1987 Thermoacoustic Microscopy Using Optical Excitation And Detection

B. Cretin, D. Hauden

Proceedings Volume 0809, Scanning Imaging Technology; (1987) https://doi.org/10.1117/12.941497
Event: Fourth International Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, The Hague, Netherlands

Abstract

Thermoacoustic imaging permits the detection of surface and subsurface inhomogeneities in solid samples. In the scanning transmission microscope the periodic heating of the sample is realized by a power modulated laser. The thermally induced elastic waves are detected, on the opposite face of the sample, by an heterodyne laser probe. The noncontact testing system is described and compared to the optical microscope. The images of defects in solid samples are presented.

Citation Download Citation

B. Cretin and D. Hauden "Thermoacoustic Microscopy Using Optical Excitation And Detection", Proc. SPIE 0809, Scanning Imaging Technology, (3 August 1987); https://doi.org/10.1117/12.941497

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