Oxygen and Other Atmospheric Gases

Abstract

Laser multiphoton, mass and photoelectron spectroscopy has been used to investigate the energy level structure and photophysics of oxygen and other atmospheric gases. Particular emphasis was placed on determining the location, predissociation and photoionization processes of the previously unknown lower ns and nd gerade Rydberg states and their interactions with valence states. A shape resonance in the ionization continuum near threshold was found to play a large role in inducing non-Franck-Condon transitions. Optimum transitions for production of vibrationally state-selected O2+ ions were found. The effects of dissociation continua and strongly mixed Rydberg-valence states as intermediates in multiphoton processes were demonstrated and explored. Oxygen, Atmospheric physics, Rydberg states, Laser spectroscopy, Multiphoton spectroscopy, Photoelectron spectroscopy, Photoionization, Shape resonances. (jes)

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Document Details

Document Type
Technical Report
Publication Date
Feb 27, 1989
Accession Number
ADA214296

Entities

People

  • E. E. Eyler
  • S. D. Colson
  • W. A. Chupka

Organizations

  • Yale University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Chemical Reactions
  • Dissociation
  • Dye Lasers
  • Electrons
  • Energy Levels
  • Ionization
  • Laser Beams
  • Laser Spectroscopy
  • Lasers
  • Measurement
  • Photoelectrons
  • Quantum Numbers
  • Scattering
  • Spectra
  • Spectrometry
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Microelectronics