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.


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a304042.pdf


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
      CRYSTALLOGRAPHY
      OPTICS


Distribution Statement : APPROVED FOR PUBLIC RELEASE