Implementation of polarization independent photorefractive ultrasonic sensor

P Delaye, A Blouin, D Drolet… - … Materials, Effects and …, 1999 - opg.optica.org
Implementation of polarization independent photorefractive ultrasonic sensor Page 1
Implementation of polarization independent photorefractive ultrasonic sensor Philippe Delaye(1) …

Photorefractive detection of ultrasound

P Delaye, A Blouin, LA de Montmorillon… - … Fiber and Crystal …, 1997 - spiedigitallibrary.org
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 …

Study and development of a multichannel ultrasonic sensor

F Grappin, P Delaye, G Roosen - 2003 Conference on Lasers …, 2003 - ieeexplore.ieee.org
In this paper, the implementation and the characterization of this multichannel
photorefractive ultrasonic sensor is presented. The multichannel photorefractive ultrasonic …

[PDF][PDF] MULTICHANNEL PHOTOREFRACTIVE LASER ULTRASONIC SENSOR

P Delaye, F Grappin, G Roosen - ndt.net
Ph. Delaye, F. Grappin and G. Roosen Laboratoire Charles Fabry de l'Institut d'Optique du
Centre National de la Recherche Scientifique et de l'Université Paris Sud, Centre …

Parallel processing of ultrasonic signals in a single photorefractive crystal

F Grappin, P Delaye, G Roosen - Photorefractive Effects, Materials …, 2003 - opg.optica.org
During the last years, we have developed a photorefractive ultrasonic sensor. This sensor is
used for non-destructive testing of materials and parts. It works with one measurement point …

Polarization independent phase demodulation using photorefractive two-wave mixing

P Delaye, A Blouin, D Drolet, JP Monchalin… - Applied physics …, 1999 - pubs.aip.org
We describe both theoretically and experimentally a polarization independent
interferometric adaptive photodetector based on photorefractive two-wave mixing. The …

New Generation of Optical Ultrasonic Sensors Adapted to Industrial Constraints

P Delaye, G Roosen - IUTAM Symposium on Advanced Optical Methods …, 2000 - Springer
In the field of non destructive testing the ultrasonic techniques are widely used for thickness
measurements, flaw detection or material characterization [1]. Ultrasonic vibrations are …

Adaptive photorefractive interferometers for ultrasound detection

AA Kamshilin - Advanced Materials and Devices for Sensing …, 2002 - spiedigitallibrary.org
The principle of optical detection of ultrasound consists in measuring the phase modulation
induced by the small ultrasonic surface displacement upon a probe beam impinging on the …

Heterodyne interferometer with two‐wave mixing in photorefractive crystals for ultrasound detection on rough surfaces

BF Pouet, RK Ing, S Krishnaswamy, D Royer - Applied physics letters, 1996 - pubs.aip.org
Heterodyne interferometers using two‐wave mixing in photorefractive cubic crystals for
ultrasound detection on rough surfaces are demonstrated. The speckled scattered beam …

Detection of ultrasonic vibrations on rough surfaces through the photorefractive effect

P Delaye, A Blouin, LA de Montmorillon… - Optical Inspection …, 1996 - spiedigitallibrary.org
We present and describe two techniques used for optical detection of ultrasonic signals
based on the photorefractive effect. These techniques used the wavefront adaptation …