Gain-Swept Superradiance Applied to the Stand-Off Detection of Trace Impurities in the Atmosphere

We show that gain-swept superradiance can be used to detect low (parts per million) concentrations of various gases at distances on the order of kilometers, which is done by using pulse timing to create small regions of gain at positions that sweep toward a detector. The technique is far more sensit...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences - PNAS 2005-05, Vol.102 (22), p.7806-7811
Main Authors: Kocharovsky, V., Cameron, S., Lehmann, K., Lucht, R., Miles, R., Rostovtsev, Y., Warren, W., Welch, G. R., Scully, M. O.
Format: Article
Language:English
Subjects:
Amplifiers
Atmosphere
Atmospherics
Clouds
Gases
Infrared radiation
Lasers
LIDAR
Molecules
Photons
Physical Sciences
Physics
Pollution
Population inversion
Pulse duration
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Summary:We show that gain-swept superradiance can be used to detect low (parts per million) concentrations of various gases at distances on the order of kilometers, which is done by using pulse timing to create small regions of gain at positions that sweep toward a detector. The technique is far more sensitive than previous methods such as light detection and ranging or differential absorption light detection and ranging.
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.0500534102