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Author Vasil'ev, B. I. ♦ Mannoun, Oussama
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ AEROSOLS ♦ AMMONIA ♦ BACKSCATTERING ♦ CARBON DIOXIDE LASERS ♦ EARTH ATMOSPHERE ♦ EMISSION ♦ HUMIDITY ♦ LAYERS ♦ OPTICAL RADAR ♦ PARTICLE SIZE ♦ PARTICLES ♦ SURFACES ♦ COLLOIDS ♦ DISPERSIONS ♦ GAS LASERS ♦ HYDRIDES ♦ HYDROGEN COMPOUNDS ♦ LASERS ♦ MEASURING INSTRUMENTS ♦ MOISTURE ♦ NITROGEN COMPOUNDS ♦ NITROGEN HYDRIDES ♦ RADAR ♦ RANGE FINDERS ♦ SCATTERING ♦ SIZE ♦ SOLS
Abstract The aerosol backscattering coefficient {beta}{sub {pi}} in a surface atmospheric layer is calculated at the emission lines of NH{sub 3} and CO{sub 2} lasers (9-13.5 {mu}m). It is shown that the coefficients {beta}{sub {pi}} at the emission lines of an NH{sub 3} laser (11-13.5 {mu}m) are comparable with the coefficients {beta}{sub {pi}} at the emission lines of a CO{sub 2} laser near 10.6 {mu}m. The dependence of {beta}{sub {pi}} on the humidity and type of aerosols is studied. It is also shown that the coefficient {beta}{sub {pi}} in a surface atmospheric layer at the lasing of an NH{sub 3} laser varies from 10{sup -10} to 7x10{sup -9} cm{sup -1} sr{sup -1}. The lidar aerosol ratio is calculated as a function of the mean aerosol radius. It is found that this ratio is independent of the particle size for aerosol particles of radius exceeding 40 {mu}m for the 11.7-{mu}m aP(4,0) line of the ammonia laser. (laser applications and other topics in quantum electronics)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2007-05-31
Publisher Place United States
Journal Quantum Electronics
Volume Number 37
Issue Number 5


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