1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China; 2 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China; 3 State Grid Chongqing Electric Power Research Institute, Chongqing 404100, China
Abstract Optical nanofiber (ONF) is a special tool to achieve the interaction between light and matter with ultralow power. In this paper, we demonstrate V-type electromagnetically induced transparency (EIT) in cold atoms trapped by an ONF-based two-color optical lattice. At an optical depth of 7.35, 90% transmission can be achieved by only 7.7 pW coupling power. The EIT peak and linewidth are investigated as a function of the coupling optical power. By modulating the pW-level control beam of the ONF-EIT system in sequence, we further achieve efficient and high contrast control of the probe transmission, as well as its potential application in the field of quantum communication and quantum information science by using one-dimensional atomic chains.
(Optical bistability, multistability, and switching, including local field effects)
Fund: Project supported by State Grid science and Technology Project (Grant No. 5700-202127198A-0-0-00).
Corresponding Authors:
Zhonghua Ji, Yanting Zhao
E-mail: jzh@sxu.edu.cn;zhaoyt@sxu.edu.cn
Cite this article:
Xiateng Qin(秦夏腾), Yuan Jiang(蒋源), Weixin Ma(马伟鑫), Zhonghua Ji(姬中华),Wenxin Peng(彭文鑫), and Yanting Zhao(赵延霆) Observation of V-type electromagnetically induced transparency and optical switch in cold Cs atoms by using nanofiber optical lattice 2022 Chin. Phys. B 31 064216
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