Ultrafast Physics in Microstructure and Alloy Systems.

Abstract

During year one of AFOSR 860031, significant progress has been achieved in (I) the main thrust area of ultrafast physics in microstructures and alloys semiconductors - regarding carrier dynamics using picosecond photoluminescence kinetics of 2D Gallium Arsenide/Gallium Aluminum Arsenide (QW) on 2 to 50 pico second time scale; dependence of electron temperature on well width in single Aluminum Indium Galide/Gallium Indium Arsenide QW; determination of valence band discontinuity via optical transitions in ultrathin QW; high density electron-hole plasma energy relaxation and rapid expansion; ultrafast carrier recombination relaxation in magnetic semiconductor; and emission and relaxation dynamics in optical deformation semiconductor Cadmium Sulfur Selenide alloy glasses; and in (II) ultrafast pulse propagation in dielectrics and semiconductors - regarding the observation of induced spectral broadening in Zinc Selenide and BK-7 glass.

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Document Details

Document Type
Technical Report
Publication Date
Feb 15, 1987
Accession Number
ADA179728

Entities

People

  • Robert Alfano

Organizations

  • City College of New York

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Crystal Lattice Vibrations
  • Electron Holes
  • Electrons
  • Energy Bands
  • Laser Pulses
  • Laser Spectroscopy
  • Lasers
  • Microstructure
  • Phonons
  • Quantum Well Lasers
  • Quantum Wells
  • Scattering
  • Semiconductors
  • Spectroscopy
  • Subatomic Particles
  • Two Dimensional
  • Wave Mixing

Fields of Study

  • Materials science
  • Physics

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.
  • Semiconductor Device Technology

Technology Areas

  • Microelectronics