Sensor Protection Portion of the Development of Nonlinear Optical Materials and Processes for Laser Hardening of Sensors.

Abstract

Nonlinear optical properties of several lead galliate glasses, CdMnTe and CdMnSe semiconductors, and SBN photorefractive crystals were studied in nanosecond and picosecond time regimes. Optical limiting characteristics of lead galliates were investigated as a function of the material properties, device geometries and incident wavelengths. Broad band clamping was observed under nanosecond illumination. Nonlinear absorption and refraction in semiconductors were studied in the picosecond time regimes. A saturation in the nonlinear refraction at high input intensities were observed which may hinder applicability of these materials as picosecond optical limiters. Picosecond and subpicosecond photorefractive properties of SBN crystals revealed that in addition to the photorefractive behavior, this material exhibited induced absorption by retrapped pump generated carriers. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Oct 31, 1994
Accession Number
ADA291200

Entities

People

  • Jin-joo Song

Organizations

  • Oklahoma State University–Stillwater

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Detectors
  • Energy Bands
  • Fermi Levels
  • Geometry
  • Laser Beams
  • Materials
  • Nanosecond Time
  • Optical Limiters
  • Optical Materials
  • Optical Properties
  • Picosecond Time
  • Refraction
  • Refractive Index
  • Scattering
  • Semiconductors
  • Wave Mixing

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Directed Energy
  • Microelectronics