Accession Number:

AD0775260

Title:

Laser Atmospheric Propagation Kinetics

Descriptive Note:

Semi-annual technical rept.

Corporate Author:

AVCO EVERETT RESEARCH LAB INC EVERETT MA

Personal Author(s):

Report Date:

1974-01-01

Pagination or Media Count:

31.0

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.

Subject Categories:

  • Atmospheric Physics
  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE