Thermoelastic hologram for focused ultrasound
- 15 June 1983
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 42 (12) , 1018-1020
- https://doi.org/10.1063/1.93826
Abstract
An acoustic holographic lens structure is described for generating thermoelastic waves from the energy of absorbed laser excitation. The structure uses a large area optically absorbing surface to permit the megahertz ultrasound to be focused for nondestructive evaluation applications. Experimental results for the spatial distribution of 10-MHz ultrasonic waves obtained from the hologram are presented.Keywords
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