Journal of the Optical Society of America B, 25(3), 458-462, (2008)

Effect of dipole-dipole interactions between atoms in an active medium

V. Berezovsky (a,c), L. Men'shikov (a,b), S. Öberg (c), and C. D. Latham (c)

(a) Pomorskii State University, Lomonosov Street, 4, Arkhangelsk, 163002, Russia

(b) Russian Research Center "Kurchatov Institute", Kurchatov Square, 1, Moscow, 123182, Russia

(c) Department of Mathematics, Luleå University of Technology, SE-97187 Luleå, Sweden

(Received 27 July 2007; revised 8 January 2008; accepted 8 January 2008; published 29 February 2008)

Abstract

On the basis of the results of numerical modeling, it is shown that dipole-dipole interactions among atoms in the active medium strongly influences the character of the associated superradiation.  The main effect is to make the nuclear subsystem behave chaotically.  Its strength increases with the atom density and leads to the suppression of distant collective correlations and superradiation.  Near correlations between the atoms are established, causing a confinement effect: a shielding of radiation in the active medium.

DOI: 10.1364/JOSAB.25.000458

OCIS: 020.1670, 140.6630, 270.6630.

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