Accession Number : ADA304042
Title : Photorefractive Tungsten Bronze Crystals for Optical Limiters and Filters.
Descriptive Note : Final technical rept. 10 Aug 88-31 May 94,
Corporate Author : ROCKWELL INTERNATIONAL THOUSAND OAKS CA SCIENCE CENTER
Personal Author(s) : Neurgaonkar, Ratnakar R.
Report Date : JAN 1996
Pagination or Media Count : 134
Abstract : The photorefractive tungsten bronze SBN:6O and BSKNN-2 crystals were investigated for sensor protection applications with considerable success. Our best photorefractive crystals exhibit response times of approximately 10 microseconds with coupling > 25/cm. This fast response was achieved using suitable dopant combinations, external field and focusing the incoming 1W/sq cm laser beam. Prototype limiters based on these photorefractive crystals have been tested at the University of Arkansas and their overall performance is promising for sensor protection applications. (MM)
Descriptors : *PHOTOREFRACTIVE MATERIALS , *CRYSTAL GROWTH , *OPTICAL FILTERS , *CRYSTAL FILTERS , OPTICAL PROPERTIES , CRYSTAL LATTICES , SINGLE CRYSTALS , ELECTRIC FIELDS , LASER BEAMS , DOPING , LASER SAFETY , REFRACTION , OPTICAL DETECTORS , FERROELECTRIC MATERIALS , TUNGSTEN , SOLITONS , TUNGSTEN ALLOYS , RADIATION HARDENING , BRONZE.
Subject Categories : ELECTROOPTICAL AND OPTOELECTRONIC DEVICES
Distribution Statement : APPROVED FOR PUBLIC RELEASE