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Electric field intensity measurement by using doublet electromagnetically induced transparency of cold Rb Rydberg atoms
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作者 宫廷 师帅 +7 位作者 姬中华 郭古青 孙小聪 田亚莉 邱选兵 李传亮 赵延霆 贾锁堂 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第10期405-409,共5页
We demonstrate a simple method to measure electric field intensity by using doublet electromagnetically induced transparency(EIT) spectra of cold Rb Rydberg atoms, where the frequency of the coupling laser does not ne... We demonstrate a simple method to measure electric field intensity by using doublet electromagnetically induced transparency(EIT) spectra of cold Rb Rydberg atoms, where the frequency of the coupling laser does not need to be locked. Based on the Stark splitting of the Rb Rydberg state, 10D_(3/2), under electric fields and the corresponding calculated polarizabilities, the real electric field intensity is calculated using the difference in radio-frequency diffraction between two acousto-optic modulators, which acts as a frequency criterion that allows us to measure the electrical field without locking the coupling laser. The value measured by this simple method shows a good agreement with our previous work [Opt.Express 29 1558(2021)] where the frequency of the coupling laser needs to be locked with an additional EIT spectrum based on atom vapor and a proportional–integral–differential feedback circuit. Our presented method can also be extended to the measurement of electric field based on hot Rydberg atom vapor, which has application in industry. 展开更多
关键词 doublet electromagnetically induced transparency(EIT) Aulter–Townes(AT)splitting Rydberg atom electric field measurement
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Observation of V-type electromagnetically induced transparency and optical switch in cold Cs atoms by using nanofiber optical lattice 被引量:1
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作者 Xiateng Qin Yuan jiang +3 位作者 Weixin Ma zhonghua ji Wenxin Peng Yanting Zhao 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第6期440-443,共4页
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... 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 ONFbased 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 pWlevel 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. 展开更多
关键词 optical nanofiber optical lattice V-type electromagnetically induced transparency optical switch
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Dark state atoms trapping in a magic-wavelength optical lattice near the nanofiber surface 被引量:1
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作者 Dianqiang Su Xiateng Qin +5 位作者 Yuan jiang Kaidi jin zhonghua ji Yanting Zhao Liantuan Xiao Suotang jia 《Chinese Optics Letters》 SCIE EI CAS CSCD 2022年第2期1-4,共4页
We report the experimental realization of dark state atoms trapping in a nanofiber optical lattice.By applying the magicwavelength trapping potentials of cesium atoms,the AC Stark shifts are strongly suppressed.The da... We report the experimental realization of dark state atoms trapping in a nanofiber optical lattice.By applying the magicwavelength trapping potentials of cesium atoms,the AC Stark shifts are strongly suppressed.The dark magneto-optical trap efficiently transfers the cold atoms from bright (6S_(1/2),F=4) into dark state (6S_(1/2),F=3) for hyperfine energy levels of cesium atoms.The observed transfer efficiency is as high as 98%via saturation measurement.The trapping lifetime of dark state atoms trapped by a nanofiber optical lattice is also investigated,which is the key element for realizing optical storage.This work contributes to the manipulation of atomic electric dipole spin waves and quantum information storage for fiber networks. 展开更多
关键词 NANOFIBER atomic trapping optical lattice dark state
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