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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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