(DEPSCOR-92) Ultrafast Pulsed Applications to Photonic Device Materials and MBE Growth Research.

Abstract

The research performed centered around the establishment of state of the art time domain spectroscopy capabilities. This included the upgrade of a femtosecond Ti: sapphire with second harmonic generation to less than 350 nm for studying wide bandgap III-N semiconductors in the ultraviolet spectral range. Probing of the optical properties of III-N structures proceeded, resulting in a significant initial data base for this new material system. In addition, femtosecond four wave mixing signals were observed for the first time in GaN, leading to an understanding of phonon-exciton interactions leading to exciton line broadening. This work led to collaborations with a large group of researchers in the III-N community, and became the basis for expanded funding.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1996
Accession Number
ADA323323

Entities

People

  • Jin-joo Song

Organizations

  • Oklahoma State University–Stillwater

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Crystal Lattice Vibrations
  • Crystals
  • Energy Bands
  • Laser Applications
  • Laser Beams
  • Laser Diodes
  • Lasers
  • Materials
  • Materials Science
  • Optical Properties
  • Optics
  • Optoelectronic Devices
  • Refractive Index
  • Semiconductors
  • Silicon Carbide
  • Solid State Physics
  • Wave Mixing

Fields of Study

  • Materials science
  • Physics

Readers

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

Technology Areas

  • Microelectronics