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arXiv quant-ph/0410011quant-phphysics.atom-ph
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椭圆偏振场磁光共振中的电磁感应吸收和透明

Electromagnetically induced absorption and transparency in magneto-optical resonances in elliptically polarized field

D. V. Brazhnikov, A. V. Taichenachev, A. M. Tumaikin, V. I. Yudin

摘要:

使用1到2的转变作为一个易于分析的模型,我们详细讨论了EIA(电磁感应吸收)和EIT(电磁感应透明)类型的Hanle配置的磁光共振。对任意速率的激发态退偏碰撞和任意椭圆场极化进行了分析。结果表明,EIA亚自然共振的主要原因是各向异性从激发面到地面的自发传递。在EIA的情况下,我们预测的负结构的π介子共振在大的场失谐。简要讨论了有限原子-光相互作用时间的作用。此外,我们还研究了与气体中速度分布有关的共振线形的非平凡特性。

英文摘要:

Using a 1 to 2 transition as an analytically tractable model, we discuss in detail magneto-optical resonances of both EIA (electromagnetically induced absorption) and EIT (electromagnetically induced transparency) types in the Hanle configuration. The analysis is made for arbitrary rate of depolarizing collisions in the excited state and arbitrary elliptical field polarization. The obtained results clearly show that the main reason for the EIA sub-natural resonance is the spontaneous transfer of anisotropy from the excited level to the ground one. In the EIA case we predict the negative structures in the absortpion resonance at large field detuning. The role of the finite atom-light interaction time is briefly discussed. In addition we study non-trivial peculiarities of the resonance lineshape related to the velocity spread in a gas.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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