Studies of Pyroelectricity in Thin Samples of Ferroelectric Materials for Improved High Speed Infrared Detectors.

Abstract

Pyroelectric (PE) detectors made of 10 and 25 micrometers thick samples of PLZT 8/65/35 respond well to megawatt, 50 nsec CO2 laser pulses. Superimposed piezoelectric oscillations have an incubation time, during which they do not disturb the PE response. Edge electroded detectors showed an RC time of 60 picosecond. Poling currents in the samples appear to have components due to space-charge injection and to polaron formation and motion. A method was developed to separate the PE component of the poling current and to measure the PE coefficient under the poling voltage. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 15, 1980
Accession Number
ADA089958

Entities

People

  • Menahem Simhony
  • Michael Bass

Organizations

  • University of Southern California

Tags

Communities of Interest

  • Advanced Electronics
  • Human Systems

DTIC Thesaurus Topics

  • Carbon Dioxide Lasers
  • Coefficients
  • Detection
  • Detectors
  • Electric Charge
  • Electrical Conductivity
  • Ferroelectric Materials
  • Infrared Detectors
  • Infrared Lasers
  • Laser Pulses
  • Lasers
  • Materials
  • Measurement
  • Oscillation
  • Quantum Electronics
  • Scientists
  • Space Charge

Fields of Study

  • Physics

Readers

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

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Directed Energy - Pulsed-Laser Deposition
  • Space
  • Space - Hall-Effect Thruster