NDLI: Atmospheric CW-FM-LD-RR ladar for trace-constituent detection: a concept development

Content Provider	Springer Nature Link
Author	Gilerson, A. Moshary, F. Agishev, R. Ahmed, S. Gross, B.
Copyright Year	2005
Abstract	We formulate a general framework for simultaneous remote ranging and spectral selection of trace constituents by an appropriate use of frequency modulation combined with mixing and filtering. A theoretical model of a spectroscopic continuous-wave, frequency-modulated, laser-diode-based range-resolving (CW-FM-LD-RR) ladar is developed for the expected echo signal modulated by the nonlinear absorption. Relationships between the heterodyne echo-signal amplitudes and frequencies and trace-gas concentration for each range are analyzed. Features of the echo-signal inversion and its calibration are studied. It is analytically shown that, by suitable processing, the range-dependent concentration profile of the absorbing gas can be extracted.
Ending Page	703
Page Count	9
Starting Page	695
File Format	PDF
ISSN	09462171
e-ISSN	14320649
Journal	Applied Physics B
Issue Number	5
Volume Number	81
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-07-22
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physical Chemistry Laser Technology and Physics, Photonics Optical Spectroscopy, Ultrafast Optics Electromagnetism, Optics and Lasers Physics and Applied Physics in Engineering Quantum Optics, Quantum Electronics, Nonlinear Optics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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Atmospheric CW-FM-LD-RR ladar for trace-constituent detection: a concept development