期刊
APL PHOTONICS
卷 1, 期 9, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4966915
关键词
-
资金
- Centre for Quantum Computation and Communication Technology [CE110001027]
- Centre for Engineered Quantum Systems [CE110001013]
- UQ Vice-Chancellor's Research and Teaching Fellowship
We report 100% duty cycle generation of sub-MHz single photon pairs at the rubidium D-1 line using cavity-enhanced spontaneous parametric downconversion. The temporal intensity cross correlation function exhibits a bandwidth of 666 +/- 16 kHz for the single photons, an order of magnitude below the natural linewidth of the target transition. A half-wave plate inside our cavity helps to achieve triple resonance between pump, signal, and idler photon, reducing the bandwidth and simplifying the locking scheme. Additionally, stabilisation of the cavity to the pump frequency enables the 100% duty cycle. The quantum nature of the source is confirmed by the idler-triggered second-order autocorrelation function at tau = 0 to be g(s,s)((2)) (0) = 0.016 +/- 0.002 for a heralding rate of 5 kHz. The generated photons are well-suited for storage in quantum memory schemes with sub-natural linewidths, such as gradient echo memories. (C) 2016 Author(s).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据