Electromagnetically Induced Transparency from a Single Atom in Free Space
Electromagnetically Induced Transparency from a Single Atom in Free Space
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DOI：
10.1103/physrevlett.105.153604
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发表时间：
2010-10-05
影响因子：
8.6
通讯作者：
Blatt, R.
中科院分区：
文献类型：
--
作者：
Slodicka, L.;Hetet, G.;Blatt, R.
在这封信中，我们报告了一个吸收光谱实验和观察电磁诱导透明从一个单一的囚禁原子。利用高数值孔径透镜将窄带高斯光束聚焦到光学冷却的（138）Ba（+）离子上。观察到该光束的消光，测量值高达1.35%。我们证明了电磁感应透明的离子通过调谐一个强的控制光束在一个三能级的Lambda型系统中的双光子共振。由于粒子数捕获，探测光束的消光被抑制了75%以上。
In this Letter, we report an absorption spectroscopy experiment and the observation of electromagnetically induced transparency from a single trapped atom. We focus a weak and narrow band Gaussian light beam onto an optically cooled (138)Ba(+) ion using a high numerical aperture lens. Extinction of this beam is observed with measured values of up to 1.35%. We demonstrate electromagnetically induced transparency of the ion by tuning a strong control beam over a two-photon resonance in a three-level Lambda-type system. The probe beam extinction is inhibited by more than 75% due to population trapping.