Effect of Electron and Phonon Excitation on the Optical Properties of Indirect Gap Semiconductors

Abstract

This dissertation addresses two research problems under the general heading of electron and phonon effects on the optical properties of indirect gap semiconductors. The first problem concerns the optical characteristics of ion-bombarded diamond crystals. This study employs coherent acoustic phonon interferometry, an ultrafast optical technique, to measure the implantation-induced optical modification. The second problem addresses nonlinear (multiphoton)absorption in germanium crystals using optical transmission, and explores the effects of electron dynamics on those measurements. In each case, the experimental results are illuminated by simulation codes.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2013
Accession Number
AD1092880

Entities

People

  • Justin Gregory

Organizations

  • Vanderbilt University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Band Gaps
  • Band Structures
  • Chemical Vapor Deposition
  • Conduction Bands
  • Crystal Lattice Vibrations
  • Crystals
  • Energy Bands
  • Free Electron Lasers
  • Information Processing
  • Laser Beams
  • Lasers
  • Optical Phenomena
  • Optical Properties
  • Optics
  • Quantum Computing
  • Quantum Information
  • Refractive Index

Fields of Study

  • Physics

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Spectroscopy.
  • Theoretical Analysis.

Technology Areas

  • Microelectronics