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面向大气背景光抑制的金属光栅偏振片效能表征及设计
Performance Characterization and Design of Wire Grid Polarizer Applied to Airlight Rejection

查看参考文献18篇

文摘 为了定量评价和合理设计偏振滤波抑制大气背景光的金属光栅(WG)偏振片,提出了WG偏振片效能表征模型。该方法利用严格耦合波(RCW)理论计算了WG偏振片的TM和TE偏振透射率,并结合偏振滤波抑制大气背景光的效能计算模型,提出了在给定光栅材料与结构参数条件下面向大气背景光抑制的WG偏振片效能表征方法。借助该方法,计算分析了一维矩形WG偏振片的大气背景光抑制效能,结果表明:WG偏振片采用金(Au)、铜(Cu)材料抑制大气背景光的效能优于银(Ag)、铝(Al)和铬(Cr)金属;随着线栅高度的增加,WG偏振片抑制大气背景光的效能提高,较优的线栅高度取200 nm以上;较优的线栅周期范围为200~300 nm;随着线栅占空比增大,WG偏振片抑制大气背景光的效能提高。结合目前偏振片制备工艺,设计了面向大气背景光抑制的一维矩形WG偏振片,其中光栅材料为Cu金属、基底材料为二氧化硅(Si02)、占空比为0.5、周期为250nm、高度为200 nm。
其他语种文摘 In order to quantitatively evaluate and reasonably design a wire grid (WG) polarizer applied to airlight rejection, a performance characterization method for a WG polarizer is proposed. The method combines rigorous coupled- wave(RCW) analysis and a computational model for performance of airlight rejection utilizing polarization filtering. In the proposed method, RCW analysis is responsible for calculating TM and TE polarization transmission efficiencies. The proposed method is utilized to calculate and analyze the performance of airlight rejection utilizing a dimensional and rectangular WG polarizer and the reached conclusion is that gold (Au) and copper (Cu) grating outperform silver(Ag), aluminum (Al) and chromium(Cr) gratings; the performance of airlight rejection utilizing a WG polarizer is improved with increasing gratings height; the relatively optimal grating height is above 200 nm; the relatively optimal range of a grating period is 200~300 nm; the performance of airlight rejection utilizing a WG polarizer increases with increasing duty cycle of gratings. The designed parameters for a WG polarizer are the grating material of Cu, substrate material of silica(S0_2), duty cycle of 0.5, grating period of 250 nm and grating height of 200 nm.
来源 光学学报 ,2015,35(12):1201003-1-1201003-7 【核心库】
DOI 10.3788/AOS201535.1201003
关键词 大气光学 ; 金属光栅偏振片 ; 效能表征 ; 大气背景光
地址

中国科学院沈阳自动化研究所, 中国科学院光电信息处理重点实验室, 辽宁, 沈阳, 110016

语种 中文
文献类型 研究性论文
ISSN 0253-2239
学科 物理学
基金 中国科学院创新基金 ;  国家973计划
文献收藏号 CSCD:5590979

参考文献 共 18 共1页

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引证文献 2

1 朱宇 移动量子密钥分发技术进展 激光与光电子学进展,2017,54(12):120004-1-120004-10
被引 3

2 陈颖 亚波长金属光栅/电介质/金属混合波导传感结构的研究 中国激光,2018,45(1):0110001-1-0110001-7
被引 7

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