NDLI: Photorefractive holography with phase conjugate of signal beam

Content Provider	IEEE Xplore Digital Library
Author	Anand, A. Narayanamurthy, C.S.
Copyright Year	2001
Description	Author affiliation: Appl. Phys. Dept., M S Univ., India (Anand, A.)
Abstract	Photorefractive crystals are one of the most efficient nonlinear optical media for recording real-time holograms with relatively low intensity requirements. This is because of their practically unlimited recyclability and they can be recorded and erased in this medium with sufficiently high sensitivity. Innovative geometries have been proposed by various authors to record holograms in these crystals with and without using applied electric field across the crystal in both two and four wave mixing geometries respectively. But, in all these cases the diffraction efficiency was not comparable with the conventional holography using photographic emulsions and this will be evident when one records real-time holographic interferograms using photorefractive crystals. In this paper we propose a new geometry for recording high efficient holograms in the photorefractive media using the phase conjugate beam of the signal beam itself as the other writing beam. Diffraction efficiencies increase by four times and PR gain increases two times in this case.
Starting Page	685
Ending Page	686
File Size	129496
Page Count	2
File Format	PDF
ISBN	0780371054
ISSN	10928081
DOI	10.1109/LEOS.2001.968999
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-11-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photorefractive materials Holography Crystals Optical recording Geometry Diffraction Holographic optical components Nonlinear optics Optical mixing Optical sensors
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Electronic, Optical and Magnetic Materials

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