Collective Atomic Recoil Lasing Including Friction and Diffusion Effects

Details Collective Atomic Recoil Lasing Including Friction and Diffusion Effects Collective Atomic Recoil Lasing Including Friction and Diffusion Effects

2003-11-04

arxiv.org/abs/quant-ph/0311012v1

Physics

Quantum Physics

4 pages, 4 figures, submitted to PRA

Scientific paper

10.1103/PhysRevA.69.041403

We extend the Collective Atomic Recoil Lasing (CARL) model including the effects of friction and diffusion forces acting on the atoms due to the presence of optical molasses fields. The results from this model are consistent with those from a recent experiment by Kruse et al. [Phys. Rev. Lett. 91, 183601 (2003)]. In particular, we obtain a threshold condition above which collective backscattering occurs. Using a nonlinear analysis we show that the backscattered field and the bunching evolve to a steady-state, in contrast to the non-stationary behaviour of the standard CARL model. For a proper choice of the parameters, this steady-state can be superfluorescent.

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