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 sensitive than previous methods such as light detection and ranging or differential absorption light detection and ranging. © 2005 by The National Academy of Sciences of the USA.
Kocharovsky, V; Cameron, S; Lehmann, K; Lucht, R; Miles, R; Rostovtsev, Y; Warren, W; Welch, GR; Scully, MO
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