Calculation of optimal parameters of an NH{sub 3}-CO{sub 2} lidar

Journal Article · Thu Jun 30 00:00:00 EDT 2005 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2005V035N06ABEH003465· OSTI ID:21470782

Vasil'ev, B I ^[1]; Mannoun, Oussama ^[2]

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1. P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
2. Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region (Russian Federation)

The basic parameters (range, signal-to-noise ratio, and sensitivity) of a lidar using NH{sub 3} and CO{sub 2} lasers are calculated. The principle of lidar operation is based on the differential absorption recording. Absorption spectra of all known Freons are considered in the spectral range 9-13.5 {mu}m and optimal wavelengths suitable for sensing them are determined. It is shown that the NH{sub 3}-CO{sub 2} lidar can sense Freons at distances up to 10 km at a signal-to-noise ratio exceeding 10. Sensitivities of the lidar for sensing Freon-11 using various lines of the ammonia laser are calculated. It is shown that remote sensing of Freon-11 at concentrations of the order of 5x10{sup -6}% is possible at distances up to 8.5 km. (laser applications and other topics in quantum electronics)

• OSTI ID: 21470782
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 35, Issue 6; Other Information: DOI: 10.1070/QE2005v035n06ABEH003465; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
AMMONIA
CARBON DIOXIDE
CARBON DIOXIDE LASERS
FREONS
OPTICAL RADAR
REMOTE SENSING
SENSITIVITY
SIGNAL-TO-NOISE RATIO
WAVELENGTHS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DIMENSIONLESS NUMBERS
GAS LASERS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDRIDES
HYDROGEN COMPOUNDS
LASERS
MEASURING INSTRUMENTS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RADAR
RANGE FINDERS
SPECTRA