Lee Yoon-Seok, Moon Han Seb
Opt Express. 2014 Jun 30;22(13):15941-8. doi: 10.1364/OE.22.015941.
We report the spatial transport of spontaneously transferred atomic coherence (STAC) in electromagnetically induced absorption (EIA), which resulted from moving atoms with the STAC of the 5S(1/2) (F = 2)-5P(3/2) (F' = 3) transition of (87)Rb in a paraffin-coated vapor cell. In our experiment, two channels were spatially separate; the writing channel (WC) generated STAC in the EIA configuration, and the reading channel (RC) retrieved the optical field from the spatially transported STAC. Transported between the spatially separated positions, the fast light pulse of EIA in the WC and the delayed light pulse in the RC were observed. When the laser direction of the RC was counter-propagated in the direction of the WC, we observed direction reversal of the transported light pulse in the EIA medium. Furthermore, the delay time, the magnitude, and the width of the spatially transported light pulse were investigated with respect to the distance between the two channels.
我们报道了在电磁诱导吸收（EIA）中自发转移原子相干性（STAC）的空间传输，这是由涂有石蜡的蒸汽池中具有（87）Rb的5S（1/2）（F = 2）-5P（3/2）（F' = 3）跃迁的STAC的移动原子所导致的。在我们的实验中，两个通道在空间上是分开的；写入通道（WC）在EIA配置中产生STAC，读取通道（RC）从空间传输的STAC中检索光场。在空间上分开的位置之间传输时，观察到了WC中EIA的快光脉冲和RC中的延迟光脉冲。当RC的激光方向与WC的方向反向传播时，我们观察到了EIA介质中传输光脉冲的方向反转。此外，还研究了空间传输光脉冲的延迟时间、幅度和宽度与两个通道之间距离的关系。
