Acoustic surface waves have been generated in a solid by using a c.w. laser modulated at 10 MHz. The arrangement is regarded as potentially useful for a nondestructive testing system in which both the generation and the detection of surface waves is effected by means of a laser.
Inspec keywords: acoustic generators; nondestructive testing; laser beam applications; surface acoustic waves; photoacoustic effect; surface acoustic wave devices
Other keywords:
Subjects: Laser applications; Nondestructive testing; Laser beam applications; Materials testing; Transduction; devices for the generation and reproduction of sound; Acoustic wave devices; Ultrasonics, quantum acoustics, and physical effects of sound
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