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Published November 1, 1963 | public
Journal Article Open

Super Radiant Narrowing in Fluorescence Radiation of Inverted Populations

Abstract

The effect of resonance reabsorption of fluorescent radiation on the spectral distribution has been considered as early as 1913 by Laudenburg and Reivhe [1]. Schein [2] and Zemansky [3] recognized that the reabsorption causes a broadening of the light emitted by resonance lamps. In this note we report an experimental and theoretical study of the complementary effect, i.e., of resonance radiation originating in a system in which the population of the upper level of the resonance transition is made to exceed that of the lower one (inverted population system).

Additional Information

Copyright © 1963 American Institute of Physics (Received 29 April 1963; revised 17 July 1963) The authors are indebted to B. G. Cohen and J. M. Whelan for the GaAs p-n diodes, to C. G. B. Garrett and C. K. N. Patel for useful discussions, and to P. M. Ness and D. H. olson for experimental assistance.

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