Journal ArticleDOI
Measurements on the raman component of laser atmospheric backscatter
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In this article, the ambiguity in the return at the laser frequency (6943 A) due to the aerosol scatter component was avoided by monitoring the frequency-shifted Raman vibrational rotation band of the nitrogen component centered at 8285 A.Abstract:
Density profiles of the gaseous atmosphere up to 3 km have been measured using laser backscatter. The ambiguity in the return at the laser frequency (6943 A) due to the aerosol scatter component was avoided by monitoring the frequency‐shifted Raman vibrational‐rotational band of the nitrogen component centered at 8285 A.read more
Citations
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Observation of raman scattering by water vapor in the atmosphere
TL;DR: Raman backscatter of frequency doubled ruby laser beam by water vapor in atmosphere observed by optical radar, calculating water vapor mixing ratio profile profile as mentioned in this paper was used to calculate water vapor mixture profile.
Journal ArticleDOI
Comparison of laser methods for the remote detection of atmospheric pollutants
H. Kildal,Robert L. Byer +1 more
TL;DR: Theoretical expressions for the minimum detectable pollutant concentration, and in each case the depth resolution and the problems of interference, pump depletion, and background noise are discussed as discussed by the authors.
Journal ArticleDOI
Stand-off Detection of Chemicals by UV Raman Spectroscopy
TL;DR: In this article, a stand-alone, solar-blind ultraviolet (UV) Raman lidar system for the detection and identification of liquid and solid targets at ranges of hundreds of meters is presented.
Journal ArticleDOI
Relative-humidity profiling in the troposphere with a Raman lidar
Ina Mattis,Albert Ansmann,Dietrich Althausen,Volker Jaenisch,Ulla Wandinger,Detlef Müller,Y. Arshinov,Sergej M Bobrovnikov,Ilya Serikov +8 more
TL;DR: This approach enabled us to acquire, for the first time to the authors' knowledge, vertical profiles of relative humidity through the entire troposphere exclusively from Raman-lidar data.
Journal ArticleDOI
Laser-Raman radar —Laser-Raman scattering methods for remote detection and analysis of atmospheric pollution
H. Inaba,T. Kobayasi +1 more
TL;DR: In this article, the authors reviewed the recent progress of the laser radar method, providing single-ended and range-resolved means for remote detection and analysis of various molecular species in the polluted as well as ordinary atmosphere, based on the existence of their Raman backscattering.
References
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Journal ArticleDOI
Determination of rates of change of polarizability from raman and rayleigh intensities
TL;DR: In this article, mean values of the rate of change of polarizability with respect to internuclear distance were determined for several molecules from the ratio of Raman and Rayleigh intensities in the gas.
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Laser Probing the Lower Atmosphere
TL;DR: The equipment used in the experiments described here was planned in 1962 and erected in Kingston, Jamaica, 18° N., 77° W. as mentioned in this paper, and was used for density measurements.
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Laser Radar Echoes from the Clear Atmosphere
TL;DR: In this article, it was shown that even in the clearest conditions echoes are obtained from the immediate vicinity, and these are much enhanced in hazy conditions, and strong signals are commonly noted at heights corresponding to low-level inversions, revealing haze layers which are not discernible by eye.