| 一种完整测量磁光克尔效应和法拉第效应的方法 |
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| 引用本文： | 钱栋梁,陈良尧,郑卫民,张颖君,郑玉祥,周仕明,杨月梅,钱佑华,尚昌和,王荫君.一种完整测量磁光克尔效应和法拉第效应的方法[J].光学学报,1999,19(4):74-480. |
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| 作者姓名： | 钱栋梁 陈良尧 郑卫民 张颖君 郑玉祥 周仕明 杨月梅 钱佑华 尚昌和 王荫君 |
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| 作者单位： | 1. 复旦大学物理系,上海,200433
2. 中国科学院物理研究所,北京,100083 |
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| 基金项目： | 国家自然科学基金,国家教育部和上海应用物理研究中心基金 |
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| 摘 要： | 详细给出了一种测量完整克尔和法拉弟效应的原理和实验装置。该装置简单可靠，安全由计算机控制。利用傅里叶变换方法，实验系统可以在从０．０１度至几百度的克尔和法拉第旋转角范围内以及在１．５￣６．０ｅＶ的光子能量范围内，准确地测量克尔和法拉第旋转角范围内以及在１．５￣６．０ｅＶ的光子能量范围内，准确地测量克尔和法拉第效应的绝对值。作为实验测量的例子，给出了ＭｎＢｉＡｌ合金薄膜样品和ＧａＰ块状样品的克尔和法
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| 关 键 词： | 克尔效应 法拉第效应 光谱学 |
| 收稿时间： | 1998/1/12 |
A Method to Measure Completely the Magneto-Optical Kerr and Faraday Effects |
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| Qian Dongliang,Chen Liangyao,Zheng Weiming,Zhang Yinjun,Zheng Yuxiang,Zhou Shiming,Yang Yuemei,Qian Youhua,Shang Changhe,Wang Yinjun.A Method to Measure Completely the Magneto-Optical Kerr and Faraday Effects[J].Acta Optica Sinica,1999,19(4):74-480. |
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| Authors: | Qian Dongliang Chen Liangyao Zheng Weiming Zhang Yinjun Zheng Yuxiang Zhou Shiming Yang Yuemei Qian Youhua Shang Changhe Wang Yinjun |
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| Abstract: | The principle with the experimental configuration to measure both the magneto-optical Kerr and Faraday effects are given. The system is simple and is fully controlled by computer. Using the Forier transfer analysis method, the spectra of the absolute Kerr and Faraday parameters can be measured in the precision data range from 0.01° to a few hundred degrees and in the photon energy range from 1.5 to 6.0 eV. Taking for examples, the measured spectra of Kerr and Faraday effects for MnBiAl alloy thin film sample and GaP bulk sample were given. Since the Faraday rotation angle is proportional to the thickness of the sample, the data should be carefully analyzed in the situation in which the fundamental absorption edge of the magnetic sample is only determined by the Faraday spectra. |
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| Keywords: | Kerr effect Faraday effect spectroscopy |
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