We present a novel method for generating 100 MHz band surface acoustic wave (SAW) by using a scanning interference fringe at the phase velocity of the SAW. The scanning interference fringe is obtained by intersecting two laser beams with different frequencies, and used as a thermoelastic source. The principle of this method is described, and experimentally demonstrated in the 110 MHz Rayleigh waves on an aluminum specimen generated by a long‐pulse (140 ns) Q‐switched Nd:YAG laser.

1.
D. A. Hutchins, in Physical Acoustics, edited by W. P. Mason and R. N. Thurston (Academic, San Diego, 1988), Vol. XVIII, p. 21–123.
2.
P.
Cielo
,
F.
Nadeau
, and
M.
Lamontagne
,
Ultrasonics
23
,
55
(
1985
).
3.
C. K. Jen, P. Cielo, F. Nadeau, J. Bussiere, and G. W. Farnell, in Proceedings of the IEEE Ultrasonics Symposium, 14–16 November 1984, Dallas, Texas, edited by B. R. McAvoy, p. 660.
4.
K.
Yamanaka
,
Y.
Nagata
, and
T.
Koda
,
Appl. Phys. Lett.
58
,
1591
(
1991
).
5.
K. Yamanaka, Y. Nagata, and T. Koda, in Review of Progress in Quantitative Nondestructive Evaluation, edited by O. D. Thompson and D. E. Chimenti (Plenum, New York, 1992), Vol. 11, p. 633.
6.
Y.
Tsukahara
,
Appl. Phys. Lett.
59
,
2384
(
1991
).
7.
D. E.
Caddes
,
C. F.
Quate
, and
C. D. W.
Wilkinson
,
Appl. Phys. Lett.
8
,
309
(
1966
).
8.
F. J.
Eberhardt
and
F. A.
Andrews
,
J. Acoust. Soc. Am.
48
,
603
(
1970
).
9.
J. D.
Aussel
,
A. Le.
Burn
, and
J. C.
Baboux
,
Ultrasonics
26
,
245
(
1988
).
10.
G.
Cachier
,
Appl. Phys. Lett.
17
,
419
(
1970
).
11.
A.
Harata
,
H.
Nishimura
, and
T.
Sawada
,
Appl. Phys. Lett.
57
,
132
(
1990
).
12.
J. P.
Monchalin
,
IEEE Trans. Ultrason. Ferroelectron. Freq. Control
UFFC-33
,
485
(
1986
).
This content is only available via PDF.
You do not currently have access to this content.