| ATOMIC AND MOLECULAR PHYSICS |
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Excitation Dependence of Dipole–Dipole Broadening in Selective Reflection Spectroscopy |
| Teng-Fei Meng1,2, Zhong-Hua Ji1,2, Yan-Ting Zhao1,2**, Lian-Tuan Xiao1,2, Suo-Tang Jia1,2 |
1State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006
2Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006
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| Cite this article: |
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Teng-Fei Meng, Zhong-Hua Ji, Yan-Ting Zhao et al 2016 Chin. Phys. Lett. 33 113202 |
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Abstract We investigate the dipole–dipole broadened selective reflection spectrum with the Cs atomic density of $10^{14}$–10$^{15}$ cm$^{-3}$. The dipole–dipole broadening is reduced and the hyperfine splitting is well resolved when the ground state atoms are excited by a detuned pump beam. The dependences of dipole–dipole broadening of Cs atoms in the $6S_{1/2}(F=3)\rightarrow6P_{3/2}(F'=4)$ hyperfine transition line on atomic density and the excitation factor are studied. It is found that the reduction of the dipole–dipole broadening is dependent on the pump beam power and is independent of the atomic density in this density range. These results are useful for understanding of the dynamical process in this range of atomic density.
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Received: 02 September 2016
Published: 28 November 2016
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| PACS: |
32.70.Jz
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(Line shapes, widths, and shifts)
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42.50.Ct
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(Quantum description of interaction of light and matter; related experiments)
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34.80.Dp
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(Atomic excitation and ionization)
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| Fund: Supported by the National Basic Research Program of China under Grant No 2012CB921603, the National Natural Science Foundation of China under Grant Nos 61275209, 11304189, 61378015 and 11434007, the Shanxi Scholarship Council of China, and the Program for Changjiang Scholars and Innovative Research Team in Universities of China under Grant No IRT13076. |
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