The Study of the Interaction of Intense Picosecond Light Pulse with Materials

Abstract

Laser action in GaAs using a Nd: glass laser as a two photon pump was investigated. External mirrors were employed to form the optical cavity. Laser action in GaAs was observed in the following experiments: Firstly, the authors observed a narrowing of the emission spectrum. Secondly, the authors examined the output power dependence upon the input power, and measured the threshold power. The main advantage of this method of optical excitation is the possibility of obtaining an inverse population throughout a large semiconductor volume. The advantage of using an external mirror resonator is that it may be possible to Q-switch the GaAs laser and to use the adjustable cavity for various other purposes.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1972
Accession Number
AD0743517

Entities

People

  • Chihhi Lee
  • Young Ho Park

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Band Gaps
  • Band Structures
  • Compound Semiconductors
  • Emission Spectra
  • Energy Bands
  • Energy Gaps
  • Glass Lasers
  • Laser Beams
  • Lasers
  • Light (Electromagnetic Radiation)
  • Materials
  • Radiation
  • Semiconductor Lasers
  • Semiconductors
  • Spectra
  • Two Photon Absorption

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Microelectronics