

Author: Deschamps M. Hosten B.
Publisher: S. Hirzel Verlag
ISSN: 1610-1928
Source: Acta Acustica united with Acustica, Vol.68, Iss.2, 1989-04, pp. : 92-95
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Abstract
Bulk heterogeneous wave propagation in a nonabsorbing medium is demonstrated experimentally. This wave is generated by means of a wedge made in an absorbing material and immersed in water. To control the heterogeneous wave structure, the ultrasonic field is scanned through the zone where the plane wave hypothesis is verified. Theoretical and experimental results fit very well and show that these waves do not only exist in the neighbourhood of interfaces, but may also be propagated in an infinite medium.
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