兼具高次谐波抑制的三镜偏振器

周洪军; 王冠军; 郑津津; 霍同林

doi:10.3788/OPE.20111910.2314

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兼具高次谐波抑制的三镜偏振器

现代应用光学 | 更新时间：2020-08-12

- 兼具高次谐波抑制的三镜偏振器
- Triple reflector polarizer integrated with suppression of higher order harmonics
- 光学精密工程 2011年19卷第10期页码：2314-2318
- 作者机构：
  
  1. 中国科学技术大学国家同步辐射实验室, 安徽合肥 230029
  2. 中国科学技术大学精密机械与精密仪器系, 安徽合肥 230027
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.10575097,10775128,61073109)();中国科学院BR计划,高等学校博士学科点专项科研基金资助项目(No 20060
- DOI：10.3788/OPE.20111910.2314
  中图分类号： TH744.2
- 收稿日期：2011-01-19，
  
  修回日期：2011-02-12，
  
  网络出版日期：2011-10-27，
  
  纸质出版日期：2011-10-25
- 稿件说明：
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周洪军, 王冠军, 郑津津, 霍同林. 兼具高次谐波抑制的三镜偏振器[J]. 光学精密工程, 2011,19(10): 2314-2318

Zhou Hong-jun, Wang Guan-jun, Zheng Jin-jin, Huo Tong-lin. Triple reflector polarizer integrated with suppression of higher order harmonics[J]. Editorial Office of Optics and Precision Engineering, 2011,19(10): 2314-2318
周洪军, 王冠军, 郑津津, 霍同林. 兼具高次谐波抑制的三镜偏振器[J]. 光学精密工程, 2011,19(10): 2314-2318 DOI： 10.3788/OPE.20111910.2314.

Zhou Hong-jun, Wang Guan-jun, Zheng Jin-jin, Huo Tong-lin. Triple reflector polarizer integrated with suppression of higher order harmonics[J]. Editorial Office of Optics and Precision Engineering, 2011,19(10): 2314-2318 DOI： 10.3788/OPE.20111910.2314.

摘要

为了抑制同步辐射光通过光栅单色器后出射的单色光在长波段的高次谐波以及提高光源在该波段的偏振特性

计算分析了三镜偏振器Au_Si_Au的偏振特性及其对长波段高次谐波的抑制效果。比较了Au_Si_Au

Au_SiC_Au和Au_Be_Au 3种不同材料的偏振镜抑制高次谐波的能力和对偏振度的提高。计算分析表明

Au_Si_Au三镜组合镜对长波段的高次谐波抑制效果较好

光源通过Au_Si_Au三镜反射后

P分量的反射率几乎为0

而S分量在30 eV以后几乎全被抑制。Au_Si_Au三反射镜不仅可以抑制30 eV以上的高次谐波

而且使该波段光源的偏振性得到提高

20 eV时最高偏振度可达99%以上

从而在极大地改善同步辐射光源纯度的同时提高了光源的偏振度。

Abstract

To suppress the higher order harmonics in monochromatic light come from a synchrotron radiation source and to improve the polarization characteristics of the source in a long wavelength

this paper analyzes the polarization characteristics of an triple-reflector polarizer Au_Si_Au and discusses its suppress abilities for higher order harmonics based on the concept of triple-reflection polarizer. It compares the characteristics of Au_Si_Au

Au_SiC_Au and Au_Be_Au triple-reflector polarizers for suppression to higher order harmonics and improvement on polarization characteristics. Obtained results show that the triple-reflector polarizer Au_Si_Au can suppress the higher order harmonics more effectively than other polarizers. Furthermore

After the light is reflected by the polarizer

the reflectance of the P component almost can be zero and that of the S component can totally blocked in the photo energy down to 30 eV. Moreover

the polarization of the source has been improved up to 99% in wavelength of 20 eV.

关键词

Keywords

references

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