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Proceedings Paper

Superfluorescence of polariton modes and forward-backward correlations in class D lasers without cavity
Author(s): E. R. Golubyatnikova; V. V. Kocharovsky; Vl. V. Kocharovsky
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Paper Abstract

We develop a theory of extreme spontaneous pulsations in open class D lasers corresponding to the bad-cavity limit when the medium relaxation rates are much less than the field relaxation rate TE-1. In this case it is mode superfluorescence (SF), not unidirectional one, which is responsible for the formation of an individual pulse, the latter being almost independent on pumping if it is strong enough. For the simple Fabry-Perot model of a short cylindrical sample, we investigate generation of 'hot' inhomogeneous polariton modes formed either by weak reflections from mirrors or by 'resonance' reflections from sharp boundaries of inverted medium. We pay particular attention to the cavity-free situation and describe one-mode and two-mode SF regimes, both giving rise to correlations between delay times of the counterpropagating pulses. We write down the solution of the initial value problem and analyze dynamics of forward-backward symmetrization of coherent transient emission initiated asymmetrically. We calculate analytically the reflection factors and growth rate of unstable discrete modes and continuous waves and indicate conditions which are necessary for mode SF to be much more efficient than unidirectional one.

Paper Details

Date Published: 14 January 2000
PDF: 7 pages
Proc. SPIE 4061, IRQO '99: Quantum Optics, (14 January 2000); doi: 10.1117/12.375334
Show Author Affiliations
E. R. Golubyatnikova, Institute of Applied Physics (Russia)
V. V. Kocharovsky, Institute of Applied Physics (Russia)
Vl. V. Kocharovsky, Institute of Applied Physics (Russia)

Published in SPIE Proceedings Vol. 4061:
IRQO '99: Quantum Optics
Vitaly V. Samartsev, Editor(s)

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