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Title: Theory of the backward beam displacement on periodically corrugated surfaces and its relation to leaky Scholte-Stoneley waves
Authors: Declercq, NF ×
Degrieck, J
Briers, Rudy
Leroy, Oswald #
Issue Date: 2004
Publisher: American Institute of Physics
Series Title: Journal of Applied Physics vol:96 issue:11 pages:6869-6877
Abstract: A demonstration of the capability of the inhomogeneous wave theory to simulate backward displacement of ultrasonic-bounded beams [M. A. Breazeale and M. Torbett, Appl. Phys. Lett. 29, 456 (1976)] has been demonstrated recently [N. F. Declercq, J. Degrieck, R. Briers, and O. Leroy, Appl. Phys. Lett. 82, 2533 (2003)]. The current report applies the theory of the diffraction of inhomogeneous waves and shows how this theory is capable of simulating, explaining, and understanding the experiments mentioned above. The theory reveals the existence of leaky Scholte-Stoneley waves, a phenomenon suggested theoretically [N. F. Declercq, J. Degrieck, R. Briers, and O. Leroy, J. Acoust. Soc. Am. 112, 2414 (2002)] and observed experimentally [A. A. Teklu, M. A. Breazeale, J. Acoust. Soc. Am. 113, 2283 (2003)]. Moreover, the present paper shows that the classical Fourier decomposition of bounded beams is unable to simulate the backward beam displacement. This work also elucidates the nature of Wood anomalies in Diffraction spectra. (C) 2004 American Institute of Physics.
ISSN: 0021-8979
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Faculty of Medicine, Campus Kulak Kortrijk
Faculty of Science, Campus Kulak Kortrijk
× corresponding author
# (joint) last author

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