Abstract
We present the theoretical and experimental characterization of a new holographic vibrometer, that uses the dynamics of the photorefractive effect in a semiconductor crystal as GaAs. The performances of our vibrometer in the linear regime are essentially controlled by the response time of the photorefractive crystal. To increase the measurement range we show the ability to extract the velocity of the target in the nonlinear regime using only an optical treatment, what allows to increase by a factor 1000 the limit velocity of the linear regime without the signal processing used by the classical interferometers (fringe counting technique, speckle tracking routines).
© 2003 Optical Society of America
PDF ArticleMore Like This
Philippe Delaye, Nicolas Lavillonière, and Gérald Roosen
490 Photorefractive Effects, Materials, and Devices (PR) 2003
R. Chiu-Zarate and R. Ramos-Garcia
MT73 Frontiers in Optics (FiO) 2003
Chen-Chia Wang, Sudhir Trivedi, Feng Jin, V. Swaminathan, and Narasimha S. Prasad
JThA62 Conference on Lasers and Electro-Optics (CLEO:S&I) 2008