Hyperfine coupling constants of cesium 7D states using two-photon spectroscopy |
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| Authors: | Y-C Lee Y-H Chang Y-Y Chang Y-Y Chen C-C Tsai H-C Chui |
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| Institution: | 1.Institute of Electro-Optical Science and Engineering,National Cheng Kung University,Tainan,Taiwan;2.Department of Physics,National Cheng Kung University,Tainan,Taiwan;3.Beam Dynamics Group,National Synchrotron Radiation Research Center,Hsinchu,Taiwan |
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| Abstract: | Doppler-free two-photon transitions of cesium 6S1/2→7D3/2, 5/2 were observed in a thermal stabilized cell. A repeated spectrum of 75 MHz introduced from the side band of an electro-optical
modulator served as a frequency marker to improve the accuracy of frequency measurement. The hyperfine magnetic dipole constant
A and electrical quadrupole constant B of Cs 7D3/2, 5/2 can be derived from the splitting intervals of the observed spectra. The results are: A=7.36(07) MHz, B=−0.88(87) MHz for the 7D3/2 state, and A=−1.81(05) MHz, B=1.01(1.06) MHz for the 7D5/2 state. These coefficients are improvements for testing high-precision measurements and determining fundamental physical constants. |
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