Laser Spectroscopy of Quantum Well and Superlattice Structures.

Abstract

The research described in this report aims to understand the effects of disorder on the lineshapes of exciton luminescence in quantum well (QW) materials. The low temperature photoluminescence (PL) and photoluminescence excitation (PLE) spectra of the excitonic transition in QW material are a sensitive test of interfacial quality. Contributions to the linewidth arise from homogeneous (lifetime) and inhomogeneous (disorder) effects. In a typical 50 A well in GaAs, a linewidth at low temperatures of a few meV compares to a typical linewidth about one hundred times smaller in bulk material.

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Document Details

Document Type
Technical Report
Publication Date
Feb 15, 1988
Accession Number
ADA193336

Entities

People

  • B. Henderson

Organizations

  • University of Strathclyde

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bulk Materials
  • Diseases And Disorders
  • Dye Lasers
  • Energy Bands
  • Laser Applications
  • Laser Diodes
  • Laser Spectroscopy
  • Lasers
  • Liquid Dye Lasers
  • Low Temperature
  • Luminescence
  • Materials
  • Measurement
  • Optical Properties
  • Quantum Wells
  • Spectra
  • Spectroscopy

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Semiconductor Device Technology

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Microelectronics
  • Microelectronics - Graphene
  • Quantum Computing