Title: Direct optical characterization of ultrasonic-waves using raman-nath diffraction of convergent light
Authors: Antonov, Sn ×
Sotnikov, Vn
Leroy, Oswald
Van Den Abeele, Koen #
Issue Date: Sep-1991
Publisher: Butterworth-heinemann ltd
Series Title: Ultrasonics vol:29 issue:5 pages:366-369
Abstract: An acousto-optic method for visualizing ultrasonic pulses based on Raman-Nath diffraction of a convergent light beam is presented and its basic features are experimentally confirmed. The laser light intensity of the far field diffraction orders becomes dependent on time, with a period of 1/fp* (where fp* denotes the repetition frequency or fundamental tone of the diffracting pulse). The spectrum of the modulated light measured by a photodetector in one specific direction behind the acousto-optic cell contains all the relevant information about the ultrasonic wave. Experimental verification has been obtained for continuous and pulsed ultrasound in a TeO2 crystal.
ISSN: 0041-624X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physics, Campus Kulak Kortrijk
× corresponding author
# (joint) last author

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