Wedge (or line) acoustic waves, propagating along the tip of an elastic wedge waveguide, are generated by pulsed YAG laser impact and detected by a wideband optical interferometer. In an ideal infinitely sharp and tall wedge guide, the antisymmetrical flexural (ASF) modes are nondispersive and their energies are mostly confined near the wedge tip. The displacement measurements with the optical probe on metallic wedges show broadband pulsed wave forms of ASF modes. Dispersive behavior of these wave forms, which are not predicted by the theoretical models, are clearly demonstrated. The dispersion curves of the phase velocity are quantitatively deduced by a phase analysis method.

1.
E. A.
Ash
,
R. M.
De la Rue
, and
R. F.
Humphryes
,
IEEE Trans. Microwave Theory Tech.
MTTT-17
,
882
(
1969
).
Google Scholar
 
2.
P. E.
Lagasse
,
Electron. Lett.
8
,
372
(
1972
).
Google Scholar
Crossref
Search ADS
 
3.
S. L.
Moss
,
A. A.
Maradudin
, and
S. L.
Cunningham
,
Phys. Rev. B
8
,
2999
(
1973
).
Google Scholar
Crossref
Search ADS
 
4.
P. E.
Lagasse
,
I. M.
Mason
, and
E. A.
Ash
,
IEEE Trans. Microwave Theory Tech.
MTT-21
,
225
(
1973
).
Google Scholar
 
5.
V. V.
Krylov
 and
D. F.
Parker
,
Wave Motion
15
,
185
(
1992
).
Google Scholar
Crossref
Search ADS
 
6.
J. R. Chamuel, Report No. JRC-34-91, Sonoquest Advanced Ultrasonic Research (1991).
7.
M. de Billy, Proc. of 10ème Congrès Français de Mécanique (Association Universitaire de Mecanique, Paris, 1991), Vol. 1, p. 1.
8.
J.
Mckenna
,
G. D.
Boyd
, and
R. N.
Thurston
,
IEEE Trans. Sonics Ultrason.
SU-21
,
178
(
1974
).
Google Scholar
 
9.
W.
Pajewski
,
M.
Szalewski
, and
P.
Kielczynski
,
Rev. Phys. Appl.
22
,
113
(
1985
).
Google Scholar
Crossref
Search ADS
 
10.
V. V.
Bozhenko
,
K. M.
Ivanov-Shits
,
M. I.
Sluch
, and
I.
Yu Solodiv
,
Sov. Phys. Acoust.
31
,
151
(
1985
).
Google Scholar
 
11.
D. A. Hutchins, in Physical Acoustics, edited by W. P. Mason and R. N. Thurston, (Academic, New York, 1988), Vol. 18, Chap. 1.
12.
R. J.
Dewhurst
,
C.
Edwards
,
A. D.
Mckie
, and
S. B.
Palmer
,
Appl. Phys. Lett.
51
,
1066
(
1987
).
Google Scholar
Crossref
Search ADS
 
13.
D.
Royer
,
E.
Dieulesaint
,
X.
Jia
, and
Y.
Shui
,
Appl. Phys. Lett.
52
,
706
(
1988
).
Google Scholar
Crossref
Search ADS
 
14.
D.
Royer
 and
E.
Dieulesaint
,
Appl. Phys. Lett.
49
,
1056
(
1986
).
Google Scholar
Crossref
Search ADS
 
15.
X. Jia, Ph.D. thesis of Université P. et M. Curie (Paris, 1988).
16.
J. D. Aussel and J. P. Monchalin, in Rev. Progress in Quantitative NDE, edited by D. O. Thompson and E. D. Chimenti (Plenum, New York, 1989), Vol. 8A 535.
17.
P. E. Lagasse, M. Cabus, and M. Verlanken, in Proceedings of 1974 Ultrasoncis Symposium (IEEE, New York, 1974), p. 121.
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