THz Radiation Source through Periodically Modulated Structures.

Abstract

Further progress has been achieved in the understanding of carrier injection into superlattices. We were able to calculate the current in a two terminal and three terminal device. In the two terminal device a strong temperature dependence of the injected current is found which depends mainly on the Fermi level in the emitter. With increasing temperature a high current level is possible. The calculated current values for the three terminal device do also agree quite well with the experimental values. This is a very encouraging result. The systematic studies of quantum wires have been continued. A clear dependence of wire mobility and subband spacing on etching procedure has been found. In the next periods new schemes as f.e. side gate techniques will be pursued to improve the wire quality and the subband spacings.

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Document Details

Document Type
Technical Report
Publication Date
Aug 06, 1996
Accession Number
ADA324390

Entities

People

  • Erich Gornik
  • G. Ploner
  • G. Strasser
  • W. Boxleitner

Organizations

  • University of Vienna

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Band Structures
  • Crystal Lattice Vibrations
  • Electric Fields
  • Electron Density
  • Electrons
  • Energy Bands
  • Fermi Levels
  • Information Operations
  • Magnetic Fields
  • Military Research
  • Physical Properties
  • Quantum Wires
  • Radiation
  • Superlattices
  • Terminals
  • Transport Ships

Fields of Study

  • Materials science

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Semiconductor Device Technology

Technology Areas

  • Quantum Computing
  • Space
  • Space - Hall-Effect Thruster