利用双自旋相干光栅实现光的超长捕获
Ultralong trapping of light using double spin coherence gratings
摘要：
在光密三能级固体介质与一对反向传播耦合场的相互作用中，观察到了光的超长俘获。与基于驻波光栅的光阱不同，驻波光栅由相同频率对的反向传播光场（M。Bajcsy等人，Nature 426，638（2003）），本方法使用共振拉曼光场激发的自旋相干光栅。观察到的光捕获时间比自旋退相时间的预期值长两个数量级，其中延长的存储时间具有基于非线性光学的量子信息处理的潜力。
英文摘要：
Ultralong trapping of light has been observed in an optically dense three-level solid medium interacting with a pair of counterpropagating coupling fields. Unlike the light trapping based on standing-wave gratings excited by the same frequency pair of counterpropagating light fields (M. Bajcsy et al., Nature 426, 638 (2003)), the present method uses resonant Raman optical field-excited spin coherence gratings. The observed light trapping time is two orders of magnitude longer than the expected value of the spin dephasing time, where the extended storage time has potential for quantum information processing based on nonlinear optics.
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