A direct frequency comb for two-photon transition spectroscopy in a cesium vapor |
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| Authors: | Zhang Yi-Chi Wu Ji-Zhou Li Yu-Qing Jin Li Ma Jie Wang Li-Rong Zhao Yan-Ting Xiao Lian-Tuan and Jia Suo-Tang |
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| Affiliation: | State Key Laboratory of Quantum Optics and Quantum Optics Devices,College of Physics and Electronics Engineering,Shanxi University,Taiyuan 030006,China |
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| Abstract: | A phase-stabilized femtosecond frequency comb is used to measure high-resolution spectra of two-photon transition 62S1/2-62P1/2,3/2-82S1/2 in a cesium vapor.The broadband laser output from a femtosecond frequency comb is split into counter-propagating parts,shaped in an original way,and focused into a room-temperature cesium vapor.We obtain high-resolution two-photon spectroscopy by scanning the repetition rate of femtosecond frequency comb,and through absolute frequency measurements. |
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| Keywords: | broadband laser two-photon spectroscopy femtosecond frequency comb |
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