| 单弹光调制傅里叶偏振光谱测量研究 |
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| 引用本文： | 张瑞,王志斌,李晓,陈友华,王耀利,杨强. 单弹光调制傅里叶偏振光谱测量研究[J]. 应用光学, 2014, 35(1): 95-99 |
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| 作者姓名： | 张瑞 王志斌 李晓 陈友华 王耀利 杨强 |
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| 作者单位： | 1.中北大学 仪器科学与动态测试教育部重点实验室,山西 太原030051; |
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| 摘 要： | 提出一种基于弹光调制器（photoelastic-modulator, PEM)的复色光偏振光谱的傅里叶测量方法，被测光经过0(-45)弹光调制器调制，通过45(0)检偏器并由探测器探测调制后形成干涉信号，对干涉信号进行傅里叶变换，由所得结果实部和虚部得到被测光Stokes矢量中的S1、S2和S3的光谱。该方法降低了偏振光光程测量的复杂度，给出理论推导过程，并结合仿真结果与理论结果对比，证实了该方法复原后的偏振光谱与原始光谱可很好地吻合。
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| 关 键 词： | 弹光调制 偏振光谱 Stokes矢量 傅里叶变换 仿真 |
Spectropolarimeter measurement based on photoelastic-modulator and Fourier transform |
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| ZHANG Rui,WANG Zhi-bin,LI Xiao,CHEN You-hua,WANG Yao-li,YANG Qiang. Spectropolarimeter measurement based on photoelastic-modulator and Fourier transform[J]. Journal of Applied Optics, 2014, 35(1): 95-99 |
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| Authors: | ZHANG Rui WANG Zhi-bin LI Xiao CHEN You-hua WANG Yao-li YANG Qiang |
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| Affiliation: | 1.Key Lab of Instrument Science &Dynamic Measurement,Ministry of Education,North University of China,Taiyuan 030051,China;2.Engineering and Technology Research Center of Shanxi Province for Optical-Electric Information and Instrument,North University of China,Taiyuan 030051,China |
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| Abstract: | A new method of spectropolarimeter aimed at polychromatic light based on photoelastic-modulator (PEM) was proposed, which included a linear retardance oriented 0°(-45°) PEM and a polarization analyzer at 45°(0°). The light was first modulated by PEM, then pass through the analyzer and formed the modulated interference signal after detected by detector. Finally the incident light polarized spectra (S1、S2 and S3 of Stokes parameters) were obtained by Fourier transform of the modulated interference signal. The method reduces the complexity of polarized optical length measurement. The basic principle was introduced, the correctness and feasibility were verified through the corresponding numerical simulation. |
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| Keywords: | photoelastic-modulator polarized spectrum Stokes parameters Fourier transform simulation |
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