Zhang Jiepeng, Hernandez Gessler, Zhu Yifu
Department of Physics, Florida International University, University Park, Miami, Florida 33199, USA.
Opt Lett. 2008 Jan 1;33(1):46-8. doi: 10.1364/ol.33.000046.
We report an experimental observation of slow light propagation in cold Rb atoms exhibiting cavity electromagnetically induced transparency (EIT). The steep slope of the atomic dispersion manifested by EIT reduces the light group velocity. The cavity filtering and feedback further contribute to the slowdown and delay of the light pulse propagation. A combination of the cavity and the EIT atomic system significantly improves the performance of the slow light propagation. A propagation time delay of approximately 200 ns was observed in the cavity and Rb EIT system, which is approximately 70 times greater than the time delay calculated for the light pulse propagation through the same Rb EIT system without the cavity.
我们报告了在呈现腔电磁诱导透明（EIT）的冷铷原子中慢光传播的实验观测结果。EIT所表现出的原子色散的陡坡降低了光群速度。腔滤波和反馈进一步促成了光脉冲传播的减速和延迟。腔与EIT原子系统的结合显著提高了慢光传播的性能。在腔和铷EIT系统中观测到了约200纳秒的传播时间延迟，这大约比光脉冲在没有腔的相同铷EIT系统中传播所计算出的时间延迟大70倍。
