DE ROSSI, Sébastien; DELAYE, Philippe; LAUNAY, Jean-Claude; ROOSEN, Gérald

doi:10.1016/S0925-3467(01)00128-8

Metadatos

Mostrar el registro completo del ítem

Licencia de uso del documento

DE ROSSI, Sébastien
Laboratoire Charles Fabry de l'Institut d'Optique / Manolia

DELAYE, Philippe
Laboratoire Charles Fabry de l'Institut d'Optique / Manolia

LAUNAY, Jean-Claude
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

Idioma

Article de revue

Este ítem está publicado en

Optical Materials. 2001, vol. 18, p. 45-48

Elsevier

Resumen en inglés

A novel optical sensor for the detection of ultrasonic motion has been recently developed. It allows to reach 25 μm displacement sensitivity with a large frequency range bandwidth 100 MHz. We will present a comparative study between various architectures of this ultrasonic detection system we have implemented. It uses InP:Fe or CdZnTe:V holographic crystals and operates with CW laser at 1.06 μm. Two configurations called the direct detection and the anisotropic diffraction configurations work with either plane or speckled waves. A third discussed configuration works with depolarized speckled waves. We measured their relative detection limits as a function of the applied electric field that governs photorefractive efficiency of the materials. Experimental results are well described by theory, using photorefractive models relevant to the used crystals< Leer menos

Metadatos

Licencia de uso del documento

Implementation and comparative evaluation of various architectures of ultrasonic photorefractive sensors

Idioma

Este ítem está publicado en

Resumen en inglés

DOI

Orígen

Centros de investigación