Water Vapor Absorption Coefficients at HF Laser Wavelengths. Part II. Development of the Measurement System and Measurements at Simulated Altitudes to 10 km.

Abstract

A unique differential photoacoustic system is described along with water vapor absorption measurements made at HF laser lines. The photoacoustic system is capable of determining absorption coefficients to .005/km. Comparisons of the data with calculated values based on a modified Lorentz profile with an augmented line wing and the latest atmospheric absorption line compilation showed good agreement for all laser lines at high pressures (N700 torr) with some discrepancies at lower pressures. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1981
Accession Number
ADA110397

Entities

People

  • Kenneth O. White
  • Laura J. Crow
  • Robert L. Spellicy

Organizations

  • Atmospheric Sciences Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Artillery
  • Atmospheric Attenuation
  • Atmospheric Sciences
  • Data Acquisition
  • Detectors
  • Laser Beams
  • Lasers
  • Measurement
  • Military Research
  • Optical Properties
  • Optics
  • Physics Laboratories
  • Scattering
  • Test And Evaluation
  • Test Facilities
  • Vapor Pressure
  • Warfare

Fields of Study

  • Physics

Readers

  • Business Analytics
  • Optical Physics and Photonics.
  • Plasma Physics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers