Laser beam propagation in the atmosphere at 1.3 microns

Details Laser beam propagation in the atmosphere at 1.3 microns Laser beam propagation in the atmosphere at 1.3 microns

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1221..363b&link_type=abstract

IN: Propagation of high-energy laser beams through the earth's atmosphere; Proceedings of the Meeting, Los Angeles, CA, Jan. 15-

Physics

Geophysics

1

Infrared Absorption, Laser Beams, Light Transmission, Molecular Absorption, Spectral Line Width, Water Vapor, Data Bases, Spectrum Analysis

Scientific paper

High-resolution Fourier-transform spectrometry is presently used, in conjunction with a specially designed multipath absorption cell, to obtain molecular absorption spectra in the 1.30-1.32 micron range for water vapor and isotopically substituted water vapor. A range of water vapor number densities, including the foreign gas-pressure broadening of water vapor by air, were studied in order to extract line-shape parameters required for atmospheric laser-propagation modeling. Molecular line shape parameters are summarized for the 1.3-micron region, and estimates are presented for ground-to-space laser propagation at several representative wavelengths. The majority of line strengths are smaller than the corresponding values in the USAF Geophysics Laboratory HITRAN molecular-parameter data base.

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