Optical Control of the Refractive Index of a Single Atom
Optical Control of the Refractive Index of a Single Atom
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DOI：
10.1103/physrevlett.105.153603
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发表时间：
2010-10-05
影响因子：
8.6
通讯作者：
Meschede, Dieter
中科院分区：
文献类型：
--
作者：
Kampschulte, Tobias;Alt, Wolfgang;Meschede, Dieter
实验证明了单原子在光腔中被弱场探测时电磁诱导透明的基本情况。我们观察到通过改变控制光场的频率来改变原子的色散和吸收性质。此外，在双光子共振下观察到了强烈的冷却效应，使原子的存储时间增加了20倍，达到约16秒。我们的结果指向了单光子全光开关。
We experimentally demonstrate the elementary case of electromagnetically induced transparency with a single atom inside an optical cavity probed by a weak field. We observe the modification of the dispersive and absorptive properties of the atom by changing the frequency of a control light field. Moreover, a strong cooling effect has been observed at two-photon resonance, increasing the storage time of our atoms twenty-fold to about 16 seconds. Our result points towards all-optical switching with single photons.