Ground-State coherence induced oscillations in a three-level system

Year: 1987

Authors: Kurmann J. Thomas H., Politi A.

Autors Affiliation: Institut für Physik, Universität Basel, Klingelbergstr. 82, CH-4056 Basel, Switzerland
Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: The interaction of a three-level atomic medium with two degenerate sublevels in the ground-state with a coherent radiation field in a ring cavity is investigated. We pay specific attention to atomic coherence within the ground-state doublet, considering separate decay rates for the ground-state coherence and the population difference. In a previous paper we presented the stationary solutions and here we report on self-pulsing solutions. At critical intensities of the input field, the partially stable symmetry-breaking branches give rise to Hopf bifurcations. Furthermore, we observe in a limiting case of the limit cycles solitary solutions. The associated diverging periods show an interesting power law behaviour.

Journal/Review: ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER

Volume: 67      Pages from: 405  to: 411

KeyWords: Ground-State coherence
DOI: 10.1007/BF01307266

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