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Mid-infrared polarization rotator based on a Si3N4-CaF2 hybrid plasmonic waveguide with asymmetric metal claddings

机译:基于Si3N4-CAF2混合等离子体波导的中红外偏振旋转器,具有不对称的金属包衣

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摘要

In this paper, a Si3N4-CaF2 hybrid plasmonic waveguide (HPW) with an asymmetric metal cladding is designed for the mid-infrared polarization rotator (PR). The mode characteristics and polarization rotation performances of the Si3N4-CaF2 HPW-based PR are simulated by using the finite element method. Operating at the wavelength of 3.5 mu m, the polarization conversion efficiency between two polarization modes (PM 1 and PM 2) is larger than 99% at a Si3N4- CaF2 HPW length of 10(4) mu m. The Si3N4-CaF2 HPW-based PR maintains good polarization rotation performances within fabrication tolerances from 10 to 10 nm. The polarization rotator based on the Si3N4-CaF2 HPWpaves the way to achieve integrated waveplates, driving many important optical functions from free space onto a chip. (C) 2021 Optical Society of America
机译:本文设计了一种具有非对称金属包层的Si3N4-CaF2混合等离子体波导(HPW),用于中红外偏振旋转器(PR)。利用有限元方法模拟了Si3N4-CaF2 HPW基PR的模式特性和偏振旋转性能。在波长为3.5μm的情况下,当Si3N4-CaF2 HPW长度为10(4)μm时,两种偏振模式(PM1和PM2)之间的偏振转换效率大于99%。基于Si3N4-CaF2 HPW的PR在10到10nm的制造公差范围内保持良好的偏振旋转性能。基于Si3N4-CaF2 HPW的偏振旋转器为实现集成波片铺平了道路,将许多重要的光学功能从自由空间驱动到芯片上。(2021)美国光学学会

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  • 来源
    《Applied optics》 |2021年第8期|共9页
  • 作者单位

    Henan Normal Univ Coll Elect &

    Elect Engn Xinxiang 453007 Henan Peoples R China;

    Henan Normal Univ Coll Elect &

    Elect Engn Xinxiang 453007 Henan Peoples R China;

    Henan Normal Univ Coll Elect &

    Elect Engn Xinxiang 453007 Henan Peoples R China;

    Henan Normal Univ Coll Elect &

    Elect Engn Xinxiang 453007 Henan Peoples R China;

    Henan Normal Univ Coll Elect &

    Elect Engn Xinxiang 453007 Henan Peoples R China;

    Chinese Acad Sci Key Lab Interfacial Phys Technol Project Shanghai 201800 Peoples R China;

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  • 正文语种 eng
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