Design of an Au-Pt-Ti wire-grid polarizer based on midinfrared pixelated micropolarizer arrays
文献类型:期刊论文
作者 | Liu, Shao-Hu4; Zhao, Zhi-Jun4; Xu FY(许方宇)3; Xu, Shi-Chun2; Gong, Xiao-Xia2; Fan, Ming-Guo2; Luo, Yong-Fang2; Qing, Hai-Yin1 |
刊名 | Optical Engineering |
出版日期 | 2023-03-01 |
卷号 | 62期号:3页码:37104 |
ISSN号 | 0091-3286 |
DOI | 10.1117/1.OE.62.3.037104 |
产权排序 | 第2完成单位 |
文献子类 | Journal article (JA) |
英文摘要 | Polarization information is widely used in complex applications such as industrial detection, biomedicine, earth remote sensing, modern military, and aerospace. However, traditional polarization devices cannot adequately satisfy the requirements of increasingly complex environments. A subwavelength grating consisting of three types of materials, namely, aurum, platinum, and titanium, was designed to improve the performance of the polarimetric components of a midwavelength infrared polarization imaging system. The morphological structure parameters of the designed grating were optimized by analyzing the effects on the polarization performance through the rigorous coupled wave theory. The proposed Au-Pt-Ti composite grating could address the problem of grating peeling off from the substrate because of high temperature during preparation. The composite grating has some advantages such as high mechanical stability, lower oxidation, and great polarization properties. The diffraction can be reduced and the extinction ratio (ER) can be effectively enhanced in a midwave infrared (MWIR) focal plane array through appropriate reduction in the termination edge spacing and the addition of a gold frame between polarizer pixels. The grating with a period of 0.8 μm was designed for application in the MWIR band. The fill factor was 0.5 and the depths of Au-Pt-Ti in the grating region were 0.44 μm. Each pixel was separated by a 3.2-μm wide gold frame. Modeling results revealed that the ER of grating was higher than 28.68 and 32.77 above the incident wavelengths of 3.89 and 4.57 μm, respectively. Additionally, excellent polarization capability was observed over a wide MWIR spectrum. Furthermore, the current manufacturing process level may generate polarizers with the aforementioned structural specifications. |
学科主题 | 物理学 ; 光学 ; 机械工程 ; 仪器仪表技术 ; 光学技术与仪器 |
URL标识 | 查看原文 |
资助项目 | China Postdoctoral Science Foundation[2021M690932] ; National Natural Science Foundation of China (NSFC)[11803089] ; National Natural Science Foundation of China (NSFC)[U1931124] ; Key Laboratory of Detection and Application of Space Effect in Southwest Sichuan at Leshan Normal University, Education Department of Sichuan Province [ZDXM202201002] |
语种 | 英语 |
出版者 | SPIE |
资助机构 | China Postdoctoral Science Foundation[2021M690932] ; National Natural Science Foundation of China (NSFC)[11803089, U1931124] ; Key Laboratory of Detection and Application of Space Effect in Southwest Sichuan at Leshan Normal University, Education Department of Sichuan Province [ZDXM202201002] |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25888] |
专题 | 天文技术实验室 |
通讯作者 | Zhao, Zhi-Jun; Xu FY(许方宇) |
作者单位 | 1.Leshan Normal University, Leshan, China 2.Kunming Institute of Physics, Kunming, China; 3.Chinese Academy of Sciences, Yunnan Astronomical Observatory, Kunming, China; 4.Henan Normal University, School of Physics, Inst. of Electromagnetic Wave, Henan Key Lab. of Infrared Mat. Spectrum Measures and Applications, Xinxiang, China; |
推荐引用方式 GB/T 7714 | Liu, Shao-Hu,Zhao, Zhi-Jun,Xu FY,et al. Design of an Au-Pt-Ti wire-grid polarizer based on midinfrared pixelated micropolarizer arrays[J]. Optical Engineering,2023,62(3):37104. |
APA | Liu, Shao-Hu.,Zhao, Zhi-Jun.,Xu FY.,Xu, Shi-Chun.,Gong, Xiao-Xia.,...&Qing, Hai-Yin.(2023).Design of an Au-Pt-Ti wire-grid polarizer based on midinfrared pixelated micropolarizer arrays.Optical Engineering,62(3),37104. |
MLA | Liu, Shao-Hu,et al."Design of an Au-Pt-Ti wire-grid polarizer based on midinfrared pixelated micropolarizer arrays".Optical Engineering 62.3(2023):37104. |
入库方式: OAI收割
来源:云南天文台
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