Frequency-filtered storage of parametric fluorescence with electromagnetically induced transparency
Frequency-filtered storage of parametric fluorescence with electromagnetically induced transparency
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DOI：
10.1103/physreva.76.023812
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发表时间：
2007-01
影响因子：
2.9
通讯作者：
K. Akiba;K. Kashiwagi;T. Yonehara;M. Kozuma
中科院分区：
文献类型：
--
作者：
K. Akiba;K. Kashiwagi;T. Yonehara;M. Kozuma
将中心频率在 {sup 87}Rb D{sub 1} 线上谐振的宽带参量荧光脉冲（探测光）注入具有相干光（控制光）的冷原子系综中。由于参数下转换过程中的增益较低，探测光处于高度聚集的光子对状态。通过关闭控制光，电磁感应透明窗口内的探测光被映射到原子上。当控制光打开时，探测光被检索，并且从超聚束效应和检索光的相干时间的增加中证实了频率滤波存储。
The broadband parametric fluorescence pulse (probe light) with center frequency resonant on the {sup 87}Rb D{sub 1} line was injected into a cold atomic ensemble with coherent light (control light). Due to the low gain in the parametric down conversion process, the probe light was in a highly bunched photon-pair state. By switching off the control light, the probe light within the electromagnetically induced transparency window was mapped on the atoms. When the control light was switched on, the probe light was retrieved and frequency-filtered storage was confirmed from the superbunching effect and an increase of the coherence time of the retrieved light.