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Proceedings Paper

Generation mechanisms for laser ultrasonics
Author(s): Adam D. Friedman; Mark K. Hinders; Eric I. Madaras; Robert F. Anastasi
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Paper Abstract

Although laser ultrasound is a promising technique for many applications, the signal-to-noise ratio of laser ultrasound is poorer than for contact ultrasonics. In this paper we present some of our current work in optimizing the excitation of laser ultrasound in composite materials. We are characterizing laser generated ultrasound as a function of laser parameters, composite material properties, and their interaction. Experimental results for a number of different laser wavelengths and pulse widths, for several materials, are presented.

Paper Details

Date Published: 8 February 1999
PDF: 12 pages
Proc. SPIE 3585, Nondestructive Evaluation of Aging Materials and Composites III, (8 February 1999); doi: 10.1117/12.339856
Show Author Affiliations
Adam D. Friedman, College of William and Mary (United States)
Mark K. Hinders, College of William and Mary (United States)
Eric I. Madaras, NASA Langley Research Ctr. (United States)
Robert F. Anastasi, U.S. Army Research Lab. and NASA Langley Research Ctr. (United States)


Published in SPIE Proceedings Vol. 3585:
Nondestructive Evaluation of Aging Materials and Composites III
George Y. Baaklini; Carol A. Nove; Eric S. Boltz, Editor(s)

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