Far-Infrared Superradiance in Methyl Fluoride
The cooperative spontaneous emission of radiation, or superradiance , should be observable from initially fully inverted molecular systems which have high gain and are either 1) shorter than a cooperation length , or 2) inverted by means of swept excitation . The emission from an extended cylindrical sample should occur as delayed pulses, the intensity, width and delay of which depend on the density ρ of excited molecules and on the length L and cross-sectional area A of the sample.
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