In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 39, No. 1A ( 2000-01-01), p. L59-
Abstract:
A technique based on high-frequency laser ultrasound has been developed for
sound velocity measurements. Precise velocity measurements were realized by employing a 140 MHz ultrasonic rf burst generated by a mode-locked laser in
combination with a pulse-echo-overlap method. As an illustrative application of this technique, longitudinal and shear velocities in silicon single crystals at 25°C were
measured with precision better than 50 ppm and 110 ppm, respectively. Diffraction effects were calculated and verified experimentally. Furthermore, longitudinal velocities
in the 〈 110 〉 direction were successfully measured up to
800°C.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2000
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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