An Experimental and Theoretical Investigation of Optogalvanic Effects.

Abstract

Optogalvanic effects are changes in the conductance of a gas discharge caused by absorption of light via a bound state - bound state transition of an atom or molecule. Optogalvanic effects of both signs are observed. Negative effects, which correspond to a decrease in discharge conductance, are of particular interests for application in pulsed power switching. Research on optogalvanic effects has resulted in (1) a better understanding of the interaction of laser radiation and gas discharges, (2) the discovery of a mechanism for amplifying optogalvanic effects, and (3) the development of powerful new gas discharge diagnostics based on optogalvanic detection of Rydberg atoms. The amplified optogalvanic effects, which occur in the cathode fall, constitute a promising area for further research.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1984
Accession Number
ADA148456

Entities

People

  • J. E. Lawler

Organizations

  • University of Wisconsin Madison Department of Physics

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Atoms
  • Current Density
  • Detection
  • Electric Fields
  • Electron Emission
  • Electrons
  • Emission
  • Energy
  • Equations
  • Gas Discharges
  • Glow Discharges
  • Ionization
  • Pulsed Power
  • Quantum Numbers
  • Radiation
  • Space Charge
  • Stark Effect

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Plasma Physics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers