Title: Probing of ultrasonic pulses by multidirectional light
Authors: Van Den Abeele, Koen ×
Leroy, Oswald #
Issue Date: Nov-1991
Publisher: Butterworth-heinemann ltd
Series Title: Ultrasonics vol:29 issue:6 pages:464-470
Abstract: An acousto-optical reconstruction method for acoustic signals using multidirectional light diffraction by finite amplitude ultrasonic pulses is presented. When crossing the ultrasonic field, the far field diffracted laser light intensity of an incident convergent light-beam becomes modulated in time. It is found that for special conditions, concerning direction of observation, ultrasonic frequency, power level and interaction length, the modulated light intensity is almost an exact copy of the diffracting acoustic pulse. Reconstruction can be completed by applying a fast Fourier transform (FFT) routine. Examples are provided and applications of this optical probing technique are suggested.
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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