Self-generated cooperative light emission induced by atomic recoil
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 coher...
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| Veröffentlicht in: | Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2004-08, Vol.70 (2), Article 023405 |
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| container_title | Physical review. A, Atomic, molecular, and optical physics |
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| creator | Javaloyes, J. Perrin, M. Lippi, G. L. Politi, A. |
| description | 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 et al. [Phys. Rev. Lett., 91 183601 (2003)], yields a semiquantitative agreement with the observations. |
| doi_str_mv | 10.1103/PhysRevA.70.023405 |
| format | Article |
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| ispartof | Physical review. A, Atomic, molecular, and optical physics, 2004-08, Vol.70 (2), Article 023405 |
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| source | American Physical Society Journals |
| subjects | ATOMIC AND MOLECULAR PHYSICS BOLTZMANN-VLASOV EQUATION DENSITY ELECTROMAGNETIC FIELDS EMISSION FOKKER-PLANCK EQUATION FORECASTING LIGHT TRANSMISSION MODULATION OPTICS PERIODICITY PHASE TRANSFORMATIONS PHOTON-ATOM COLLISIONS Physics QUANTUM MECHANICS RADIATION PRESSURE RECOILS RELAXATION VISIBLE RADIATION |
| title | Self-generated cooperative light emission induced by atomic recoil |
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