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Novel theoretical aspects on photorefractive ultrasonic detection and implementation of a sensor with an optimum sensitivity

hal.structure.identifierLaboratoire Charles Fabry de l'Institut d'Optique / Manolia
dc.contributor.authorDE MONTMORILLON, Louis-Anne
hal.structure.identifierLaboratoire Charles Fabry de l'Institut d'Optique / Manolia
dc.contributor.authorDELAYE, Philippe
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLAUNAY, Jean-Claude
hal.structure.identifierLaboratoire Charles Fabry de l'Institut d'Optique / Manolia
dc.contributor.authorROOSEN, Gérald
dc.date.issued1997
dc.identifier.issn0021-8979
dc.description.abstractEnWe here expose theoretical and experimental results on homodyne detection using near-infrared laser sources, at 1.06, 1.32, and 1.55 mm wavelengths. The used photorefractive crystals are two large size CdZnTe:V samples. With speckled beams such as the ones scattered by diffusive objects, we reach a detection limit which, at 1.55 mm, is only 1.6 times above the one obtained with plane waves in a classical interferometer and only 2 and 2.2 times above at 1.32 and 1.06 mm, respectively. It is then demonstrated that the electron-hole competition, which varies enormously between these three wavelengths and gives a nearly zero two-wave-mixing gain at 1.32 mm, does not influence the sensitivity of the system. Moreover, we show that the frequency cutoff of the system is four times higher in the attenuation regime than in the amplification one.
dc.language.isoen
dc.publisherAmerican Institute of Physics
dc.title.enNovel theoretical aspects on photorefractive ultrasonic detection and implementation of a sensor with an optimum sensitivity
dc.typeArticle de revue
dc.identifier.doi10.1063/1.366492
dc.subject.halPhysique [physics]/Physique [physics]/Optique [physics.optics]
bordeaux.journalJournal of Applied Physics
bordeaux.page5913-5922
bordeaux.volume82
bordeaux.issue12
bordeaux.peerReviewedoui
hal.identifierhal-00673502
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00673502v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Applied%20Physics&rft.date=1997&rft.volume=82&rft.issue=12&rft.spage=5913-5922&rft.epage=5913-5922&rft.eissn=0021-8979&rft.issn=0021-8979&rft.au=DE%20MONTMORILLON,%20Louis-Anne&DELAYE,%20Philippe&LAUNAY,%20Jean-Claude&ROOSEN,%20G%C3%A9rald&rft.genre=article


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