Study of the Dependence of Photoenhanced Nonlinear Acoustic Surface Wave Interactions on the Wavelength of Light.

Abstract

The effect of illumination with bandgap light on the convolution of surface acoustic waves on ZnO and GaAs has been investigated as a function of light wavelength and crystal temperature. The experiments indicate that the photoenhancement effect in ZnO is sensitive to trapping and surface preparation. A possible model for the dependence of photoenhancement on photon wavelength in ZnO has been proposed. Attempts to observe the photoenhancement effect in GaAs were unsuccessful because of problems in obtaining the correct sample resistivity. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 10, 1977
Accession Number
ADA041045

Entities

People

  • Edgar A. Kraut
  • Teong C. Lim

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Frequencies
  • Acoustic Waves
  • Acoustics
  • Band Gaps
  • Crystal Structure
  • Electric Fields
  • Energy Bands
  • Frequency
  • Materials
  • Measurement
  • Military Research
  • Optical Properties
  • Physics
  • Piezoelectric Crystals
  • Space Charge
  • Surface Acoustic Waves
  • Surface Waves

Readers

  • Materials Science and Engineering.
  • Molecular Photonics/Laser Physics
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.