| 双光子共振非简并四波混频测量钡原子里德伯态碰撞展宽中的伴线研究 |
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| 引用本文： | 孙江,刘鹏,孙娟,苏红薪,王颖.双光子共振非简并四波混频测量钡原子里德伯态碰撞展宽中的伴线研究[J].物理学报,2012,61(12):124205-124205. |
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| 作者姓名： | 孙江 刘鹏 孙娟 苏红薪 王颖 |
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| 作者单位： | 1. 河北大学物理科学与技术学院,保定,071002
2. 河北大学数学与计算机学院,保定,071002 |
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| 基金项目： | 国家自然科学基金青年科学基金(批准号:10804025), 河北省自然科学基金 (批准号:A2009000147)和 河北省自然科学基金基地专项(批准号: 08B006, 08B008)资助的课题. |
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| 摘 要： | 研究了采用双光子共振非简并四波混频技术测量原子里德伯态碰撞展宽时出现的伴线现象, 测量了不同缓冲气压下的钡原子里德伯态6snd 1D2 (n=16, 22, 36) 的四波混频谱线, 研究了伴线随主量子数n 的变化曲线以及伴线信号强度随缓冲气压压强的变化曲线, 分析了伴线对NFWM谱线的线宽的影响, 发现考虑伴线对四波混频谱线线宽的贡献, 可以对NFWM模型下测量到的碰撞展宽系数进行修正.
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| 关 键 词： | 四波混频 碰撞展宽 里德伯态 伴线 |
| 收稿时间： | 2012-01-06 |
Study of the satellite line in measurement of the argon -gas-induced broadening of the barium Rydberg levels by two-photon resonant nondegenerate four-wave mixing |
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| Sun Jiang,Liu Peng,Sun Juan,Su Hong-Xin,Wang Ying.Study of the satellite line in measurement of the argon -gas-induced broadening of the barium Rydberg levels by two-photon resonant nondegenerate four-wave mixing[J].Acta Physica Sinica,2012,61(12):124205-124205. |
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| Authors: | Sun Jiang Liu Peng Sun Juan Su Hong-Xin Wang Ying |
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| Institution: | 1. College of Physical Science and Technology, Hebei University, Baoding 071002, China;2. College of Mathematics and Computer Science, Hebei University, Baodin, 071002, China |
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| Abstract: | We study the satellite lines in measurement of the foreign-gas-induced broadening of the barium Rydberg levels by two-photon resonant nondegenerate four-wave mixing (NFWM). The NFWM spectra of the 6s2 1S0-6snd 1D2 (n=16, 22, 36) transitions at different argon pressures are measured. The plots of the center of satellite line principal quantum number and versus pressure are discussed. The contribution of satellite line to the NFWM spectral profile is analyzed. We find that the pressure-broadening rate coefficient can be corrected when the contribution of satellite line is considered. |
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| Keywords: | four-wave mixing collision-induced broadening Rydberg state satellite line |
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