Share Email Print
cover

Proceedings Paper

Photorefractive detection of ultrasound
Author(s): Philippe Delaye; Alain Blouin; Louis-Anne de Montmorillon; Denis Drolet; Jean-Pierre Monchalin; Gerald Roosen
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We present and describe different techniques based on the photorefractive effect that are used for the optical detection of ultrasonic signals. These techniques use the wavefront adaptation properties of the photorefractive effect. They are: the photorefractive beam combiner, the double phase conjugate heterodyne detection and the adaptive photodetector based on non steady state photoelectromotive force. Their respective advantages and drawbacks, are overviewed. We insist on the latest development and performances obtained with the photorefractive beam combiner that seems to use the most promising technique for the detection of ultrasonic signals on rough surfaces. We show that a sensor with near optimum sensitivity can be developed with the same photorefractive crystal at different wavelength in the range of 1 micrometer to 1.55 micrometer.

Paper Details

Date Published: 22 September 1997
PDF: 12 pages
Proc. SPIE 3137, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications III, (22 September 1997); doi: 10.1117/12.287778
Show Author Affiliations
Philippe Delaye, Institut d'Optique Theorique et Appliquee (France)
Alain Blouin, National Research Council of Canada (Canada)
Louis-Anne de Montmorillon, Institut d'Optique Theorique et Appliquee (France)
Denis Drolet, National Research Council of Canada (Canada)
Jean-Pierre Monchalin, National Research Council of Canada (Canada)
Gerald Roosen, Institut d'Optique Theorique et Appliquee (France)


Published in SPIE Proceedings Vol. 3137:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications III
Francis T. S. Yu; Shizhuo Yin, Editor(s)

© SPIE. Terms of Use
Back to Top