Optically Induced Hot Electron Effects in Semiconductors.

Abstract

We report our progress in using the high electric fields and ultrashort pulses from mode-locked lasers to study the temporal evolution of the saturable optical properties of semiconductors on a picosecond time scale. In these studies, the excite and probe technique is employed to obtain information concerning the ultrafast dynamics of photogenerated electron-hole plasmas. Germanium has been chosen for the initial investigations since its bandgap energy is comparable to but less than the photon energy of the Nd: glass laser.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1978
Accession Number
ADA073920

Entities

People

  • Arthur L. Smirl

Organizations

  • University of North Texas

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Band Gaps
  • Band Structures
  • Crystal Lattice Vibrations
  • Energy Bands
  • Energy Gaps
  • Energy Levels
  • Fermi Levels
  • Geometry
  • Laser Pulses
  • Laser Science
  • Lasers
  • Measurement
  • Optical Properties
  • Optics
  • Picosecond Time
  • Scattering
  • Solid State Physics

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Directed Energy
  • Microelectronics