Coherent Control of Angular Momentum Transfer in Resonant Two-Photon Light-Matter Interaction
Coherent Control of Angular Momentum Transfer in Resonant Two-Photon Light-Matter Interaction
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DOI：
10.1103/physrevlett.104.133001
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发表时间：
2010-04-02
影响因子：
8.6
通讯作者：
van der Zande, W. J.
中科院分区：
文献类型：
--
作者：
Malik, D. A.;Kimel, A. V.;van der Zande, W. J.
我们从实验和理论上证明了在共振双光子激发过程中，具有零净角动量的偏振成形飞秒激光脉冲在原子铷中产生了净角动量。在二阶含时微扰理论的框架下，分析了产生非零角动量的必要条件以及激发效率。
We show experimentally and theoretically that a polarization-shaped femtosecond laser pulse with a zero net angular momentum creates a net angular momentum in atomic rubidium during resonant two-photon excitation. The necessary conditions for the creation of a nonzero angular momentum as well as the excitation efficiencies are analyzed in the framework of second-order time-dependent perturbation theory.