论文标题
作为固定的光脉冲，同时捕获了两个原子集合中的两个光学脉冲
Simultaneous Trapping of Two Optical Pulses in an Atomic Ensemble as Stationary Light Pulses
论文作者
论文摘要
固定光脉冲（SLP）是指通过两个反向传播驾驶场制备的原子合奏中的零组 - 速度光脉冲。尽管将光脉冲捕获在没有空腔的原子培养基中的独特性，但由于严格的SLP相匹配条件，迄今为止，SLP的观察限于捕获单个光学脉冲，这严重阻碍了基于SLP的应用的发展。在本文中，我们首先从理论上表明SLP过程实际上支持两个相匹配条件，然后我们利用结果来实验证明在0.8 $ $ $ s到2.0 $ $ $ s的持续时间内同时证明了两个光学脉冲的同时捕获。通过从SLP捕获状态的释放效率测量获得的特征耗散时间为1.22 $μ$ S，对应于有效的Q因子$ 2.9 \ times 10^9 $。预计我们的工作将带来有趣的基于SLP的应用程序，例如有效的光子 - 光子相互作用，空间多模式相干量子记忆，异国情调光子气体状态的创建等。
The stationary light pulse (SLP) refers to a zero-group-velocity optical pulse in an atomic ensemble prepared by two counter-propagating driving fields. Despite the uniqueness of an optical pulse trapped within an atomic medium without a cavity, observations of SLP so far have been limited to trapping a single optical pulse due to the stringent SLP phase-matching condition, and this has severely hindered the development of SLP-based applications. In this paper, we first show theoretically that the SLP process in fact supports two phase-matching conditions and we then utilize the result to experimentally demonstrate simultaneous SLP trapping of two optical pulses for the duration from 0.8 $μ$s to 2.0 $μ$s. The characteristic dissipation time, obtained by the release efficiency measurement from the SLP trapping state, is 1.22 $μ$s, which corresponds to an effective Q-factor of $2.9\times 10^9$. Our work is expected to bring forth interesting SLP-based applications, such as, efficient photon-photon interaction, spatially multi-mode coherent quantum memory, creation of exotic photonic gas states, etc.
