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首页> 外文期刊>Photonics and Nanostructures: Fundamentals and Applications >Background-free metamaterial sensor based on resonant asymmetric transmission
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Background-free metamaterial sensor based on resonant asymmetric transmission

机译：基于谐振不对称传输的无背景超材料传感器

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摘要

We theoretically report that asymmetric transmission phenomenon of linearly polarized light enables an ultrasensitive and background-free metamaterial sensor with a sensitivity of 47.5 THz/RIU in the optical range. The asymmetric transmission in the metamaterial arises from the twist arrangement of two cascaded ring apertures and its asymmetric factor can reach 0.47. Importantly, by detecting the direction-dependent polarization conversion, the metamaterial is capable of sensing refractive index of surrounding medium. The sensing principle dictated by cross-polarization makes the sensor background-free since co-polarization background noise is easily removed. The proposed metamaterial may open up opportunities to develop novel sensors and polarization modulators in the optical regime.
机译：我们理论上报告了线性偏振光的不对称传输现象使得超细和无抗体的超材料传感器能够在光学范围内具有47.5至riu的灵敏度。 超金属材料中的不对称传递由两个级联环形孔的扭转布置产生，其不对称因子可以达到0.47。 重要的是，通过检测方向依赖性偏振转换，超材料能够感测周围介质的折射率。 通过交叉偏振决定的感测原理使得传感器无背景，因为很容易被释放。 拟议的超材料可以开辟在光学制度中开发新颖传感器和偏振调制器的机会。

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  • 作者

    Dong Guohua; Liu Rongyu; Lv Bo; Lv Tingting; Li Yuxiang; Li Ping; Zhu Zheng; Guan Chunying; Shi Jinhui;

  • 作者单位

    Harbin Engn Univ Coll Phys &

    Optoelect Engn Key Lab Fiber Integrated Opt Minist Educ Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Phys &

    Optoelect Engn Key Lab Fiber Integrated Opt Minist Educ Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Phys &

    Optoelect Engn Key Lab Fiber Integrated Opt Minist Educ Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Phys &

    Optoelect Engn Key Lab Fiber Integrated Opt Minist Educ Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Phys &

    Optoelect Engn Key Lab Fiber Integrated Opt Minist Educ Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Phys &

    Optoelect Engn Key Lab Fiber Integrated Opt Minist Educ Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Phys &

    Optoelect Engn Key Lab Fiber Integrated Opt Minist Educ Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Phys &

    Optoelect Engn Key Lab Fiber Integrated Opt Minist Educ Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Phys &

    Optoelect Engn Key Lab Fiber Integrated Opt Minist Educ Harbin 150001 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 光学;
  • 关键词

    Metamaterials; Sensor; Asymmetric transmission; Polarization conversion;

    机译：超材料;传感器;不对称传输;极化转换;

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