Development of a Diode Laser Fluorine Atom Diagnostic.

Abstract

The first direct measurement of the fluorine-atom ground state fine structure transition, using diode laser absorption spectroscopy, is reported. The fine structure absorption line position (spin-orbit energy splitting), measured with high precision relative to a pure rotational transition in H2O, is 404.11/cm + or - 0.04. The measured radiative lifetime is 1060 sec + or - 25 %, and the collision-broadened linewidth in argon (full width at half maximum) is approximately 2.3 ten to the minus 4th power/cm/Torr (0.17/cm/atm). Application of the diode laser absorption technique to measurement of F-atom concentrations in chemical lasers is also discussed. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1979
Accession Number
ADA081884

Entities

People

  • Alan C. Stanton
  • Charles E. Kolb

Organizations

  • Aerodyne Research

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Air Force
  • Chemical Lasers
  • Chemical Reactions
  • Demography
  • Detection
  • Flow Rate
  • Frequency
  • Frequency Combs
  • Hydrogen Fluoride Lasers
  • Laser Applications
  • Laser Diodes
  • Lasers
  • Measurement
  • Spectra
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Spectroscopy.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Space
  • Space - Hall-Effect Thruster