Collision Dynamics and Transition Probabilities for Vibrationally Excited OH

Abstract

Vibrationally excited OH is a significant source of infrared emission in the upper atmosphere. Modeling the nonequilibrium processes responsible for the emission between vibrational levels in the ground state (called the Meinel bands) requires values for absolute transition probabilities and vibrational energy transfer rate constants for OH. However, the accuracy of currently available information is questionable. Most experimental studies have used the Meinel band emission itself to measure these quantities, with limited success. This report describes the development of a new laser-induced fluorescence method for detecting high-lying vibrational levels of OH. Keywords: Collision dynamics, OH, Transition probabilities, Rotational energy transfer, Laser-induced fluorescence, Meinel bands, Vibrational energy transfer, Hydroxyl radical.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1989
Accession Number
ADA207856

Entities

People

  • Richard A. Copeland

Organizations

  • SRI International

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Angular Momentum
  • Chemical Kinetics
  • Chemical Reactions
  • Chemistry
  • Detection
  • Dye Lasers
  • Energy
  • Energy Transfer
  • Ground State
  • Laser Induced Fluorescence
  • Lasers
  • Measurement
  • Molecular Physics
  • Physics Laboratories
  • Quantum Yields

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers