Ultrafast Modulation Spectroscopy in Four-Level System
YU Zu-he, MI Xin, JIANG Qian, LI Xiao-feng, FU Pan-ming
Laboratory of Optical Physics, Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
Ultrafast Modulation Spectroscopy in Four-Level System
YU Zu-he;MI Xin;JIANG Qian;LI Xiao-feng;FU Pan-ming
Laboratory of Optical Physics, Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
关键词 ：
42.65.Hw ,
32.90.+a
Abstract ： Based on the interference between two two-photon processes, we reported a four-level ultrafast modulation spectroscopy in Na vapor, where 3S, 3P, 5S, and 4D formed a four-level system. We studied the temporal behavior of the four-wave mixing signal intensity and obtained signal modulation with period 25fs, corresponding to the splitting between 5s and 4D. This technique can achieve Doppler-free precision in the measurement of the energy level splitting between two excited states which are dipolar forbidden from the ground state.
Key words ：
42.65.Hw
32.90.+a
出版日期: 1998-06-01
:
42.65.Hw
(Phase conjugation; photorefractive and Kerr effects)
32.90.+a
(Other topics in atomic properties and interactions of atoms with photons)
引用本文:
YU Zu-he;MI Xin;JIANG Qian;LI Xiao-feng;FU Pan-ming. Ultrafast Modulation Spectroscopy in Four-Level System[J]. 中国物理快报, 1998, 15(6): 420-422.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1998/V15/I6/420
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