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Proceedings Paper

Detection of laser-generated Rayleigh waves by recording their IR radiation
Author(s): Alexander P. Kubyshkin; M. Paul; Walter Arnold
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Paper Abstract

The possibility of remote detection of ultrasonic waves by measuring the IR radiation from a surface, has been shown experimentally. This effect is based on the adiabatic propagation of the surface waves. Rayleigh waves were excited by a pulsed Nd:YAG laser on the surface of a steel sample at temperatures close to 1000 degrees C. The surface temperature was estimated independently by the direct measurement of the surface vibration using a laser heterodyne interferometer. Good correlation of the time-of- flight data of the Rayleigh wave propagation, as well as in evaluated and measured temperature deviation was observed. The possibility of application of this laser ultrasonic technique of material properties evaluation at elevated temperatures is discussed.

Paper Details

Date Published: 20 January 1999
PDF: 7 pages
Proc. SPIE 3688, 6th International Conference on Industrial Lasers and Laser Applications '98, (20 January 1999); doi: 10.1117/12.337541
Show Author Affiliations
Alexander P. Kubyshkin, NICTL Laser Research Ctr. (Russia)
M. Paul, Fraunhofer Institute for Nondestructive Testing (Germany)
Walter Arnold, Fraunhofer Institute for Nondestructive Testing (Germany)

Published in SPIE Proceedings Vol. 3688:
6th International Conference on Industrial Lasers and Laser Applications '98
Vladislav Ya. Panchenko; Vladimir S. Golubev, Editor(s)

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