It is shown that using optoacoustic phase angle scanning rather than amplitude scanning enables precise measurements of subsurface structure in metal. For some applications the method can be an alternative to x‐ray imaging.
REFERENCES
1.
A. Rosencwaig, in Opto‐acoustic Spectroscopy and Detection, edited by Yoh‐Han Pao (Academic, New York, 1977).
2.
3.
4.
Y. H.
Wong
, R. L.
Thomas
, and G. F.
Hawkins
, Appl. Phys. Lett.
32
, 538
(1978
).5.
G. Busse and A. Ograbeck, Topical Meeting on Photoacoustic Spectroscopy, Iowa State University, Ames, Iowa, 1979 (unpublished).
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© 1979 American Institute of Physics.
1979
American Institute of Physics
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