Thermoelastic hologram for focused ultrasound
作者:
R. J. von Gutfeld,
D. R. Vigliotti,
C. S. Ih,
W. R. Scott,
期刊:
Applied Physics Letters
(AIP Available online 1983)
卷期:
Volume 42,
issue 12
页码: 1018-1020
ISSN:0003-6951
年代: 1983
DOI:10.1063/1.93826
出版商: AIP
数据来源: AIP
摘要:
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.
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