| A Novel Nano-Grating Structure of Polarizing Beam Splitters |
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| 作者姓名： | 张亮 李晶 李承芳 张飞 史丽娜 |
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| 作者单位： | [1]Department of Physics, Wuhan University, Wuhan 430072 [2]Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10474076. |
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| 摘 要： | A metal wire nanograting is fabricated and used as a polarizing beam splitter that reflects TE polarization and transmits TM polarization. The metal wire nanograting is based on a fully optimized design structure that consists of not only the core nanowire metal grid but also the substrate nanograting. The substrate nanograting is designed to provide better performance for both TM and TE polarizations. We fabricate metal-stripe gratings on a glass substrate using nanoimprint lithography and reactive ion etching process. A detailed investigation of the polarization effect at 1550 nm wavelength is carried out with the theoretical analysis and experimental results. The polarizing beam splitter has uniform performance with wide variations in the incident angle （±25） and has high efficiency for both the reflected and the transmitted beams.
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| 关 键 词： | 纳米光栅结构 偏置束分流器 金属线 衬底 |
| 收稿时间： | 2006-01-11 |
| 修稿时间： | 2006-01-11 |
A Novel Nano-Grating Structure of Polarizing Beam Splitters |
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| ZHANG Liang, LI Jing, LI Cheng-Fang, ZHANG Fei, SHI Li-Na.A Novel Nano-Grating Structure of Polarizing Beam Splitters[J].Chinese Physics Letters,2006,23(7):1820-1822. |
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| Authors: | ZHANG Liang LI Jing LI Cheng-Fang ZHANG Fei SHI Li-Na |
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