Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: Self-calibrating speckle photo-electromotive force for large vibration amplitude measurement
Author: Mosquera, L
Frejlich, J
Abstract: We report the use of the photo-electromotive-force effect in a speckled pattern of light on a photorefractive Bi12TiO20 crystal to measure the amplitude of transverse vibrations in a self-calibrating mode. Our theoretical model shows that, for vibrations much faster than the photorefractive response time, the photo-emf signal exhibits a maximum at a characteristic vibration amplitude value that may be used to calibrate the photo-emf sensor. Small differences between experiment and theory are still under research.
Subject: speckle
photo-electromotive force
Country: Inglaterra
Editor: Iop Publishing Ltd
Rights: fechado
Identifier DOI: 10.1088/1464-4258/6/11/001
Date Issue: 2004
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

Files in This Item:
File Description SizeFormat 
WOS000225175800001.pdf100.99 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.