Self-generated cooperative light emission induced by atomic recoil
Year: 2004
Authors: Javaloyes J., Perrin M., Lippi GL., Politi A.
Autors Affiliation: Institut Non Linéaire de Nice, UMR 6618 CNRS, Université de Nice-Sophia Antipolis, 1361 Route des Lucioles, 06560 Valbonne, France;
Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy
Abstract: The interaction of an atomic gas confined inside a cavity containing a strong electromagnetic field is numerically and theoretically investigated in a regime where recoil effects are not negligible. The spontaneous appearance of a density grating (atomic bunching) accompanied by the onset of a coherent, back-propagating electromagnetic wave is found to be ruled by a continuous phase transition. Numerical tests allow us to convincingly prove that the transition is steered by the appearence of a periodic atomic density modulation. Consideration of different experimental relaxation mechanisms induces us to analyze the problem in nearly analytic form, in the large detuning limit, using both a Vlasov approach and a Fokker-Planck description. The application of our predictions to recent experimental findings, reported by Kruse [Phys. Rev. Lett., 91 183601 (2003) ], yields a semiquantitative agreement with the observations.
Journal/Review: PHYSICAL REVIEW A
Volume: 70 (2) Pages from: 023405-1 to: 023405-10
KeyWords: INDUCED RESONANCES; 2-LEVEL ATOMS; SODIUM VAPOR; RESONATOR; Citations: 10data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-04-28References taken from IsiWeb of Knowledge: (subscribers only)