Optical Absorption of Blased Semiconductor Superlattices

Abstract

We report the first experiment which relates electronic transport and intraband optical absorption in a biased superlattice. Wannier Stark ladders far in the continuum and strongly coupled by Zener resonances are observed in an n-type GaAs/AlGaAs superlattice using infrared spectroscopy. Additional transport measurements reveal the formatilon of electric-field domains with electrons tunneling resonantly to the next-nearest superlattice period. A theoretical description of the optical data is presented and we are able to reproduce most of the important features in the experimental traces.

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Document Details

Document Type
Technical Report
Publication Date
Jun 18, 1999
Accession Number
ADP012966

Entities

People

  • F. M. Peteers
  • M. Helm
  • R. H. De Meester

Organizations

  • University of Antwerp

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Absorption Spectra
  • Electric Fields
  • Electrons
  • Energy
  • Energy Bands
  • Energy Levels
  • Ground State
  • Infrared Phenomena
  • Infrared Spectroscopy
  • Optical Absorption
  • Optical Properties
  • Quantum Wells
  • Semiconductors
  • Spectra
  • Spectroscopy

Fields of Study

  • Materials science
  • Physics

Readers

  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Semiconductor Device Technology

Technology Areas

  • Microelectronics