Observation of V-type electromagnetically induced transparency and optical switch in cold Cs atoms by using nanofiber optical lattice |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | optical nanofiber optical lattice V-type electromagnetically induced transparency optical switch |
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