Hot Electron Emission in Semiconductors.

Abstract

Sub micron sinusoidal gratings were prepared on GaAs/GaAlAs heterostructures. Experiments to demonstrate a Smith-Purcell-effect in a semiconductor are in preparation. FIR emission due to streaming of hot carriers in crossed electric and magnetic fields has been observed on large p-Ge samples. Stimulated emission has not been achieved yet. A new theory of the crossed field configuration (electric and magnetic) describing the Landau levels in a quantum mechanical manner was developed. It is shown that population inversion between Landau levels can be achieved, if scattering by optical phonons and a quasielastic scattering process are taken into account.

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1986
Accession Number
ADA174488

Entities

People

  • E. Gornik
  • Karl Unterrainer
  • Manfred Helm
  • Robert Christanell

Organizations

  • University of Innsbruck

Tags

Communities of Interest

  • Advanced Electronics
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Crystal Lattice Vibrations
  • Electric Fields
  • Electron Density
  • Electron Emission
  • Electrons
  • Emission
  • Equations
  • Far Infrared Radiation
  • Infrared Radiation
  • Integral Equations
  • Magnetic Fields
  • Phonons
  • Photoexcitation
  • Radiation
  • Scattering
  • Semiconductors

Fields of Study

  • Materials science

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Semiconductor Device Technology

Technology Areas

  • Microelectronics
  • Quantum Computing