| 光外差-塞曼调制磁旋转光谱技术的线型研究 |
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| 引用本文： | 王荣军,毕志毅,陈扬,卢晶晶,蔡佩佩,杨晓华,马龙生.光外差-塞曼调制磁旋转光谱技术的线型研究[J].光学学报,1999,19(11):504-1511. |
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| 作者姓名： | 王荣军 毕志毅 陈扬 卢晶晶 蔡佩佩 杨晓华 马龙生 |
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| 作者单位： | 华东师范大学物理系,华东师范大学量子光学开放研究实验室,上海200062 |
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| 基金项目： | 国家自然科学基金，波谱与原子分子物理国家重点实验室资助项目 |
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| 摘 要： | 光外差－塞曼调制磁旋光谱技术是一种高灵敏的吸收光谱技术。它同时对激光频率和样品的塞曼效应进行调制，然后通过双解调来提取微弱的光谱信号。文内导出了该信号的数学表达式，并对影响线型和灵敏度的多种物理参数进行了分析，获得了与实验相符合的结果。
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| 关 键 词： | 频率调制 磁旋转光谱技术 吸收线型 色散线型 |
| 收稿时间： | 1998/8/23 |
Line Shape Analysis of Optical Heterodyne Zeeman Modulation Magnetic Rotation Spectroscopy |
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| Wang Rongjun,Bi Zhiyi,Chen Yangqin,Lu Jingjing,Cai Peipei,Yang Xiaohua,Ma Longsheng.Line Shape Analysis of Optical Heterodyne Zeeman Modulation Magnetic Rotation Spectroscopy[J].Acta Optica Sinica,1999,19(11):504-1511. |
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| Authors: | Wang Rongjun Bi Zhiyi Chen Yangqin Lu Jingjing Cai Peipei Yang Xiaohua Ma Longsheng |
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| Abstract: | Optical heterodyne Zeeman modulation magnetic rotation spectroscopy (OHZM-MRS) is a high sensitive spectroscopy technique. In this spectroscopy, both laser frequency and Zeeman effect of a sample are modulated, and then the signal with high signal-to-noise will be obtained by double demodulation. The expression of OHZM-MRS signal is derived, and the influences on the line shape of OHZM-MRS are discussed by the extinction coefficient of polarizers, ellipticity, phase shift induced by elliptical polarization, φ angle (where φ is the small uncrossing angle between two nearly crossed polarizers) and residual amplitude modulation. The results of theory and experiment are in agreement each other. |
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| Keywords: | frequency modulation magnetic rotation spectroscopy absorption line shape dispersion line shape |
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