Optical force and friction of a V-type three-level atom in a driven high-Q cavity

Liu, Liwei; Tan, Lei; Xu, Yan

doi:10.1080/09500340902836267

Journal of Modern Optics

2009

DOI: 10.1080/09500340902836267

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Optical force and friction of a V-type three-level atom in a driven high-Q cavity

Liwei Liu

Lei Tan

Yan Xu

Abstract: 2009) Optical force and friction of a V-type three-level atom in a driven high-Q cavity, Journal of Modern Optics, 56:8, 968-974, A model is presented to calculate the optical force and friction for a three-level atom in a V-type configuration in a weakly driven high-finesse cavity. Analytical expressions for the force and friction are derived using Heisenberg equations. It is demonstrated that the cooling rate can be increased by one order of magnitude over that of a two-level atomic system, which would stimu… Show more

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Cited by 3 publications

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Mechanical effects of light on the Ξ-type three-level atom in a high-finesse optical cavity

刘利伟¹,

谭磊²,

黄刚³

2011

Chinese Phys. B

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A theoretical study is carried out for the modification and implication of the effect on the Ξ-type three level atom in a high-finesse optical cavity driven by light field including spontaneous emission and the cavity decay. Analytic expressions for the dipole force, the friction force, the optical potentials and the friction coefficient are obtained. Then the numerical and graphical methods are used to investigate the friction coefficient with the controlling parameters. It is shown that the friction coefficient is strongly dependent on the controlling parameters. The cooling rate can increase by one order of magnitude more than that of a two-level atomic system. The reason can be given using the dressed states and the Sisyphus cooling mechanism, which would stimulate further experimental investigations.

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Mechanical effects of light on the Ξ-type three-level atom in a high-finesse optical cavity

刘利伟¹,

谭磊²,

黄刚³

2011

Chinese Phys. B

Self Cite

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Demonstration of the approximation of eliminating atomic excited populations in an atom—cavity system

Zhang¹,

Huang²,

Tan³

2012

Chinese Phys. B

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Using the master equation approach to a V-type three-level atom inside a high-finesse single-mode cavity in the strong coupling condition, we demonstrate the approximation of eliminating populations of atomic excited states, which is widely used in the field of the atom—cavity systems [Hechenblaikner G, Gangl M, Horak P and Ritsch H 1998 Phys. Rev. A 58 3030]; Liu L W, Tan T and Xu Y 2008 J. Mod. Opt. 56 968; Cho J, Angelakis D G and Bose S 2008 Phys. Rev. A 78 062338. This is reflected in the deviation of the population δ, of which the value is 10−3 ∼ 10−2. We further find the deviation of the dipole force and demonstrate that the deviation of atomic population will not notably affect the dipole force of the atom in the strong coupling condition. A relevant experimental case is also presented.

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Cooling of a Λ-type three-level atom in a high-finesse optical cavity

2010

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A theoretical study is carried out for the cavity cooling of a Λ-type three level atom in a high-finesse optical cavity with a weakly driven field. Analytical expressions for the friction, diffusion coefficients and the equilibrium temperatures are obtained by using the Heisenberg equations, then they are calculated numerically and shown graphically as a function of controlling parameters. For a suitable choice of these parameters, the dynamics of the cavity field interaction with the Λ-type three-level atom introduces a sisyphus cooling mechanism yielding lower temperatures below the Doppler limit and allowing larger cooling rate, avoiding the problems induced by spontaneous emission.PACS. 3 2.80.Pj; 42.50.Vk.

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Optical force and friction of a V-type three-level atom in a driven high-Q cavity

Cited by 3 publications

References 18 publications

Mechanical effects of light on the Ξ-type three-level atom in a high-finesse optical cavity

Mechanical effects of light on the Ξ-type three-level atom in a high-finesse optical cavity

Demonstration of the approximation of eliminating atomic excited populations in an atom—cavity system

Cooling of a Λ-type three-level atom in a high-finesse optical cavity

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