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Superradiant light scattering and grating formation in cold atomic vapours

R. Bonifacio, Brian W J McNeil, N. Piovella +1 more

A semi-classical theory of coherent light scattering from an elongated sample of cold atoms exposed to an off-resonant laser beam is presented. The model, which is a direct extension of that of the collective atomic recoil laser (CARL), describes the emission of two superradiant pulses along the sample's major axis simultaneous with the formation of a bidimensional atomic grating inside the sample. It provides a simple physical picture of the recent observation of collective light scattering from a Bose-Einstein condensate [S. Inouye et al., Science N.285, p. 571 (1999)]. In addition, the model provides an analytical description of the temporal evolution of the scattered light intensity which shows good quantitative agreement with the experimental results of Inouye et al.A semi-classical theory of coherent light scattering from an elongated sample of cold atoms exposed to an off-resonant laser beam is presented. The model, which is a direct extension of that of the collective atomic recoil laser (CARL), describes the emission of two superradiant pulses along the sample's major axis simultaneous with the formation of a bidimensional atomic grating inside the sample. It provides a simple physical picture of the recent observation of collective light scattering from a Bose-Einstein condensate [S. Inouye et al., Science N.285, p. 571 (1999)]. In addition, the model provides an analytical description of the temporal evolution of the scattered light intensity which shows good quantitative agreement with the experimental results of Inouye et al.

arXiv:cond-mat/0006135Jun 8, 20000 citations

Collective Atom–Light Interactions in Dense Atomic Vapours

James Keaveney

Springer thesesJan 1, 201422 citations

Dispersive optical bistability in cold atomic vapours

Gordon R. M. Robb, Brian W J McNeil, R. Bonifacio +1 more

Optics CommunicationsJul 1, 20010 citations

Rayleigh superradiance and dynamic Bragg gratings in an end-pumped Bose-Einstein condensate

Andrew J. Hilliard, Franziska Kaminski, Rodolphe Le Targat +3 more

We study superradiant Rayleigh scattering from a Bose-Einstein condensate (BEC) in a parameter regime where pump depletion and the exchange of photons between the end-fire modes are important. Through experiments and simulations, we show that collective atom-light coupling leads to the self-organized formation of dynamic Bragg gratings within the sample. These gratings lead to an efficient backscattering of pump photons and optical resonator structures within the BEC.

arXiv:0810.5690Physical Review ANov 18, 200838 citations

Classical and quantum description of the atomic motion in superradiant light scattering from Bose-Einstein condensates

N. Piovella, M. Gatelli, L Martinucci +3 more

A theory of coherent light scattering from an elongated Bose-Einstein condensate exposed to an off-resonant laser beam is presented. The model describes the emission of two superradiant pulses along the sample's major axis simultaneous with the formation of a bidimensional atomic grating inside the sample, as was observed in a recent MIT experiment [Inouye, S. et al., 1999, Science, 285, 571]. We predictions of the semiclassical model, in which the atomic motion is treated classically, are compared with these of the quantum model, obtained including the quantum mechanical description of the atomic motion. In the quantum limit the superradiant regime becomes a sequential process, in which during each collective scattering atoms emit a it hyperbolic secant pulse and populate an adjacent momentum state.A theory of coherent light scattering from an elongated Bose-Einstein condensate exposed to an off-resonant laser beam is presented. The model describes the emission of two superradiant pulses along the sample's major axis simultaneous with the formation of a bidimensional atomic grating inside the sample, as was observed in a recent MIT experiment [Inouye, S. et al., 1999, Science, 285, 571]. We predictions of the semiclassical model, in which the atomic motion is treated classically, are compared with these of the quantum model, obtained including the quantum mechanical description of the atomic motion. In the quantum limit the superradiant regime becomes a sequential process, in which during each collective scattering atoms emit a it hyperbolic secant pulse and populate an adjacent momentum state.

Laser PhysicsJan 1, 200210 citations

Superradiant phases of an atomic beam traversing an optical cavity

Simon B. Jäger, Haonan Liu, Athreya Shankar +2 more

Bulletin of the American Physical SocietyJun 4, 20210 citations

Superradiant light scattering and grating formation in cold atomic vapours

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