| 基于艳原子线性法拉第磁光效应的应用 |
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| 引用本文： | 刘强,曾宪金,张军海,黄宗军,孙伟民. 基于艳原子线性法拉第磁光效应的应用[J]. 光学技术, 2011, 37(1): 11-13 |
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| 作者姓名： | 刘强 曾宪金 张军海 黄宗军 孙伟民 |
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| 作者单位： | 1. 哈尔滨工程大学,哈尔滨,150001;东北石油大学电子科学学院,黑龙江,大庆,163318
2. 哈尔滨工程大学,哈尔滨,150001 |
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| 基金项目： | 科技部国际科技合作项目，黑龙江省高等学校青年学术骨干支持计划 |
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| 摘 要： | 分析了(銫) (Cs)原子作为旋光介质的线性法拉第磁光效应.采用二能级模型解释了(銫)原子与光的相互作用,并利用琼斯矩阵推导了当激光器的频率处于(銫)原子共振线时,经过(銫)气室的线偏振光的旋转角与外加磁场的关系式,利用此关系式可测量磁场强度的大小和气室内(銫)原子的浓度.实验采用852nm分布反馈半导体激光器作为光源...
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| 关 键 词： | 法拉第磁光效应 磁场测量 艳浓度测量 |
Application of the linear Faraday's magnetic-optic effect based on cesium atom |
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| LIU Qiang,ZENG Xianjin,ZHANG Junhai,HUANG Zongjun,SUN Weimin. Application of the linear Faraday's magnetic-optic effect based on cesium atom[J]. Optical Technique, 2011, 37(1): 11-13 |
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| Authors: | LIU Qiang ZENG Xianjin ZHANG Junhai HUANG Zongjun SUN Weimin |
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| Affiliation: | 1(1.Harbin Engineering University,Harbin 150001,China)(2.College of Electronic Science,Northeast Petroleum University,Daqing Heilongjiang 163318,China) |
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| Abstract: | Linear Faraday's magnetic-optic effect which uses the cesium atom as the medium is analyzed.The two-level atom model is used to explain the interaction between the cesium atoms and light.When the laser frequency is equal to the cesium atomic resonance line,the relation between the rotated angle of the incident linear polarized light and the magnetic field is derived from Jones matrix.According to the equation,the magnetic field and the density of cesium vapor can be measured.The optical measure system is composed of 852nm semiconductor distributed feedback laser,polarizer,cesium vapor cell and polarized beam splitter.The experimental result and theoretical value are in good agreement. |
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| Keywords: | Faraday's magnetic-optic effect magnetic field measurement cesium density measurement |
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