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基于氧化铟锡的风扇型中红外手性超材料及其圆二向色性

朱叶欣,李亚楠,施维捷,张文涛,闫长春

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朱叶欣, 李亚楠, 施维捷, 张文涛, 闫长春. 基于氧化铟锡的风扇型中红外手性超材料及其圆二向色性[J]. , 2020, 13(4): 722-727. doi: 10.37188/CO.2019-0190
引用本文: 朱叶欣, 李亚楠, 施维捷, 张文涛, 闫长春. 基于氧化铟锡的风扇型中红外手性超材料及其圆二向色性[J]. , 2020, 13(4): 722-727.doi:10.37188/CO.2019-0190
ZHU Ye-xin, LI Ya-nan, SHI Wei-jie, ZHANG Wen-tao, YAN Chang-chun. Fan-shaped mid-infrared chiral metamaterials based on indium tin oxide and their circular dichroism[J]. Chinese Optics, 2020, 13(4): 722-727. doi: 10.37188/CO.2019-0190
Citation: ZHU Ye-xin, LI Ya-nan, SHI Wei-jie, ZHANG Wen-tao, YAN Chang-chun. Fan-shaped mid-infrared chiral metamaterials based on indium tin oxide and their circular dichroism[J].Chinese Optics, 2020, 13(4): 722-727.doi:10.37188/CO.2019-0190

基于氧化铟锡的风扇型中红外手性超材料及其圆二向色性

doi:10.37188/CO.2019-0190
基金项目:国家自然科学基金项目(No.61771227);江苏师范大学大学生创新创业训练计划项目(No.XSJCX8049)
详细信息
    作者简介:

    朱叶欣(1998—)女,江苏盐城人,本科,主要从事微纳米结构材料的设计及其电磁调控特性研究。E-mail:1027781149@qq.com

    李亚楠(1998—)女,江苏南京人,大学生,主要从事微纳米结构材料的设计及其电磁调控特性研究。Email:3131857055@qq.com

    张文涛(1976—),女,江苏徐州人,讲师,2007年于中国矿业大学获得硕士学位,主要从事微纳结构材料及器件方面的研究。Email:zhangwentao@xzit.edu.cn

    闫长春(1972—),男,江苏新沂人,教授,1996年于徐州师范大学获得学士学位;2000年于苏州大学获得硕士学位;2009年于东南大学获得博士学位;主要从事微纳结构材料及器件方面的研究。E-mail:yhchangchun@163.com

    通讯作者:

    闫长春(1972—),男,江苏新沂人,教授,1996年于徐州师范大学获得学士学位;2000年于苏州大学获得硕士学位;2009年于东南大学获得博士学位;主要从事微纳结构材料及器件方面的研究。E-mail:yhchangchun@163.com

  • 中图分类号:TN214

Fan-shaped mid-infrared chiral metamaterials based on indium tin oxide and their circular dichroism

Funds:Supported by National Natural Science Foundation of China (No.61771227); Innovation and Entrepreneurship Training Program for College Students in Jiangsu Normal University (No.XSJCX8049)
More Information
  • 摘要:本文设计了一种中红外波段手性超材料以克服传统中红外 偏振态调控所使用的控制元件体积大、成本高等不足。利用中红外等离激元材料氧化铟锡(ITO)设计风扇型手性结构,并研究了该结构在中红外波段的圆二向色性(CD)。通过改变扇叶层填充材料、扇叶厚度、扇叶大小、扇叶数量以及扇叶的材料,讨论结构的CD变化情况。模拟结果表明:当填充材料为硅、扇叶为6片时,选取合适的扇叶厚度和大小,在5.3 μm附近获得最强的CD信号,为0.052。此外,与贵金属银、金相比,由ITO构成的结构展现出良好的宽带圆二向色性,这为中红外波段宽带偏振态调控器件的设计提供了新的思路。

  • 图 1由6个相同的ITO扇叶组成的手性结构单元示意图

    Figure 1.Schematic diagram of a chiral structural unit composed of six identical ITO fan blades

    图 2圆二色性与波长的关系

    Figure 2.Circular dichroism as a function of wavelength

    图 3填充层为硅和空气时圆二色性与波长关系

    Figure 3.Circular dichroism as a function of wavelength when the fan blade layer is filled with Si and air, respectively

    图 4扇叶厚度变化时圆二色性随波长变化图

    Figure 4.Circular dichroism as a function of wavelength when the thickness of the fan blades is changed

    图 5扇叶大小变化时圆二色性随波长变化图

    Figure 5.Circular dichroism as a function of wavelength when the size of the fan blades is changed

    图 6扇叶数量变化时圆二色性随波长的变化图

    Figure 6.Circular dichroism as a function of wavelength when the number of the fan blades is changed

    图 7扇叶材料变化时圆二色性变化关系图

    Figure 7.Circular dichroism as a function of wavelength when the material of the fan blades is changed

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出版历程
  • 收稿日期:2019-09-25
  • 修回日期:2019-10-15
  • 刊出日期:2020-08-01

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