Laser Atmospheric Propagation Kinetics

Abstract

An analytical model has been developed describing the atmospheric absorption of DF laser energy and the subsequent kinetic processes of energy exchange. For eight representative strong laser transitions, the atmospheric absorbers with energy levels and absorption cross sections have been specified. The analytical kinetic model describing the kinetics of absorption by N2O, CO2, CH4, and HDO - H2O has been developed and rate constants have been selected for use in the calculation. Preliminary results of the quantitative determination of the atmospheric temperature change resulting from absorption by N2O are presented. An assessment of the sea level kinetic effects of N2O in heating the atmosphere is given using a simple square wave pulse shape. Two limiting concentrations of water have been used and the laser energy has been varied over several orders of magnitude.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1974
Accession Number
AD0775260

Entities

People

  • C. A. Brau

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Absorption Cross Sections
  • Atmospheric Attenuation
  • Climate Change
  • Collisions
  • Contracts
  • Department Of Defense
  • Deuterium Fluoride Lasers
  • Energy Transfer
  • Experimental Data
  • Frequency
  • Kinetics
  • Lasers
  • Military Research
  • Power Levels
  • Radiation
  • Sea Level
  • Square Waves

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Spectroscopy.
  • Theoretical Analysis.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers