All-Optical Switch and Transistor Gated by One Stored Photon
All-Optical Switch and Transistor Gated by One Stored Photon
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DOI：
10.1126/science.1238169
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发表时间：
2013-08-16
期刊：
影响因子：
56.9
通讯作者：
Vuletic, Vladan
中科院分区：
文献类型：
--
作者：
Chen, Wenlan;Beck, Kristin M.;Vuletic, Vladan
实现全光晶体管，其中一个“门”光子控制一个“源”光束，是光学领域的一个长期目标。通过停止包含在光学谐振器内的原子系综中的光脉冲，我们实现了一种装置，其中一个存储的门光子控制随后施加的源光子的谐振器传输。一个弱的门脉冲诱导双峰传输分布，对应于零和一个门光子。一个存储的门光子产生五倍的源衰减，并且可以在切换多个源光子后从原子系综中恢复。在没有检索的情况下，一个存储的门光子可以切换数百个源光子。随着存储和检索效率的提高，我们的工作可能会使各种新的应用，包括光子量子门和确定性多光子纠缠。
The realization of an all-optical transistor, in which one "gate" photon controls a "source" light beam, is a long-standing goal in optics. By stopping a light pulse in an atomic ensemble contained inside an optical resonator, we realized a device in which one stored gate photon controls the resonator transmission of subsequently applied source photons. A weak gate pulse induces bimodal transmission distribution, corresponding to zero and one gate photons. One stored gate photon produces fivefold source attenuation and can be retrieved from the atomic ensemble after switching more than one source photon. Without retrieval, one stored gate photon can switch several hundred source photons. With improved storage and retrieval efficiency, our work may enable various new applications, including photonic quantum gates and deterministic multiphoton entanglement.