Atmospheric Effects on CO2 Laser PropagationNational Aeronautics and Space Administration, Scientific and Technical Information Office, 1978 - Atmosphere - 107 pages |
Common terms and phrases
1200 PRESSURE mb Absorption coefficient aerosol AFCRL Midlatitude Summer amplitude fluctuations approximately atmospheric attenuation atmospheric turbulence backscatter backscatter and extinction beam diameter beam wander calculated carbon dioxide CO₂ CO2 laser coefficient of carbon coefficient of nitrous coefficient of water coherence length correlation length covariance function diffraction distribution Edwards AFB effects equation extinction coefficient frequency gases given ground range Haze increases inhomogeneities intensity laser beam Laser Doppler System laser line laser radiation laser system lateral coherence length log-amplitude covariance log-amplitude variance log-normal log-normal distribution maximum measured molecular absorption coefficient MSFC Pulsed Laser nitrous oxide lines number density obtained optical P16 LINE P20 line parameters path length plane wave radius Rayleigh distribution refractive index S/N ratio saturation scintillation sea level shown in Figure spatial spectrum strong turbulence temperature tion transmission loss turbulence strength turbulent eddies variation water vapor lines wavefront wavelength wavenumber