Telecom-heralded single-photon absorption by a single atom
Telecom-heralded single-photon absorption by a single atom
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DOI：
10.1103/physreva.92.063827
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发表时间：
2015-12-16
影响因子：
2.9
通讯作者：
Eschner, Juergen
中科院分区：
文献类型：
--
作者：
Lenhard, Andreas;Bock, Matthias;Eschner, Juergen
我们提出、表征和应用了近红外和电信光谱区之间的光子量子接口的体系结构。单谐振光参量振荡器工作在阈值以下，与外部滤光片相结合，产生高速率(2.5×10(6)S(-1))窄带光子对(类似于7 MHz带宽)，信号光子调谐到与Ca+原子跃迁共振，而闲置光子位于电信波长。界面操作是通过单个囚禁离子(类似于670 S(-1))对单个光子的高速吸收来演示的，这是由符合的电信光子所预示的。
We present, characterize, and apply the architecture of a photonic quantum interface between the near infrared and telecom spectral regions. A singly resonant optical parametric oscillator (OPO) operated below threshold, in combination with external filters, generates high-rate (>2.5 x 10(6) s(-1)) narrowband photon pairs (similar to 7 MHz bandwidth); the signal photons are tuned to resonance with an atomic transition in Ca+, while the idler photons are at telecom wavelength. Interface operation is demonstrated through high-rate absorption of single photons by a single trapped ion (similar to 670 s(-1)), heralded by coincident telecom photons.