Photorefractive Tungsten Bronze Crystals for Optical Limiters and Filters.

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)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1996
Accession Number
ADA304042

Entities

People

  • Ratnakar R. Neurgaonkar

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Band Gaps
  • Crystal Lattices
  • Crystal Structure
  • Crystals
  • Curie Temperature
  • Electro-Optics
  • Electromagnetic Fields
  • Energy Bands
  • Energy Transfer
  • Fermi Levels
  • Laser Beams
  • Optical Properties
  • Optics
  • Phase Transformations
  • Refractive Index
  • Scattering
  • Transition Temperature

Fields of Study

  • Materials science
  • Physics

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy