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基于新型钙钛矿材料的光场调控太赫兹超表面仿真研究

李依凡 杨睿 解佩翰 杨贺 娄存广 刘秀玲 姚建铨

李依凡, 杨睿, 解佩翰, 等. 基于新型钙钛矿材料的光场调控太赫兹超表面仿真研究[J]. 强激光与粒子束, 2023, 35: 129001. doi: 10.11884/HPLPB202335.230128
引用本文: 李依凡, 杨睿, 解佩翰, 等. 基于新型钙钛矿材料的光场调控太赫兹超表面仿真研究[J]. 强激光与粒子束, 2023, 35: 129001. doi: 10.11884/HPLPB202335.230128
Li Yifan, Yang Rui, Xie Peihan, et al. Simulation of terahertz metasurface controlled by light field based on novel perovskite materials[J]. High Power Laser and Particle Beams, 2023, 35: 129001. doi: 10.11884/HPLPB202335.230128
Citation: Li Yifan, Yang Rui, Xie Peihan, et al. Simulation of terahertz metasurface controlled by light field based on novel perovskite materials[J]. High Power Laser and Particle Beams, 2023, 35: 129001. doi: 10.11884/HPLPB202335.230128

基于新型钙钛矿材料的光场调控太赫兹超表面仿真研究

doi: 10.11884/HPLPB202335.230128
基金项目: 中国科协青年人才托举工程项目(2022QNRC001);国家重点研发计划项目(2022YFA1203502);国家自然科学基金项目(2022YFA1203502); 河北大学人才引进项目 (521100221083);河北省自然科学基金项目(F2023201041)
详细信息
    作者简介:

    李依凡,liyifan_an@163.com

    通讯作者:

    刘秀玲,liuxiuling121@hotmail.com

  • 中图分类号: TB333

Simulation of terahertz metasurface controlled by light field based on novel perovskite materials

  • 摘要: 为实现高效太赫兹调控,迫切需要一种高效且成本低的材料。新型钙钛矿材料由于其优异的光电特性,加上钙钛矿制备工艺简单、可大批量生产等优点,非常适合作为太赫兹超材料的活性材料,通过外部激励改变活性材料的属性,可灵活调控太赫兹波。因此,选择新型钙钛矿材料外加光场调控太赫兹,分析在光场作用前(绝缘态)和在光场作用后(金属态)两种状态对单元结构太赫兹宽波段下幅值和相位的影响。设计出光场灵活调控的钙钛矿基1 bit太赫兹编码超表面结构,该结构由有机无机杂化钙钛CH3NH3PbI3(MAPbI3)、聚酰亚胺和铝构成。通过CST仿真结果显示,该超表面结构在光场的调控下能够实现宽谱(0.1、1、2、6 THz)太赫兹波的180°相位差变化,经过超表面编码结构的设计,同一编码序列实现远场波束的变换。研究结果表明,基于光场操控钙钛矿材料的编码超表面为实现灵活的太赫兹波调控提供了新的思路,在太赫兹通信、安检、生物医学成像等方面具有巨大的应用潜力。
  • 图  1  单元“0”与“1”的结构示意图

    Figure  1.  Structure diagram of unit “0” and “1”

    图  2  0.1 THz反射振幅与反射相位

    Figure  2.  0.1 THz reflection amplitude and reflection phase

    图  5  6 THz反射振幅与反射相位

    Figure  5.  6 THz reflection amplitude and reflection phase

    图  3  1 THz反射振幅与反射相位

    Figure  3.  1 THz reflection amplitude and reflection phase

    图  4  2 THz反射振幅与反射相位

    Figure  4.  2 THz reflection amplitude and reflection phase

    图  6  0.1 THz的远场示意图与反射率比色图对比

    Figure  6.  Far-field diagrams of 0.1 THz compared with reflectance colorimetric diagram

    图  7  1 THz的远场示意图与反射率比色图对比

    Figure  7.  Far-field diagrams of 1 THz compared with reflectance colorimetric diagram

    图  8  2 THz的远场示意图与反射率比色图对比

    Figure  8.  Far-field diagrams of 2 THz compared with reflectance colorimetric diagram

    图  9  6 THz的远场示意图与反射率比色图对比

    Figure  9.  Far-field diagrams of 6 THz compared with reflectance colorimetric diagram

    表  1  “0”结构参数

    Table  1.   Structure parameters of unit ‘0’

    frequency/THz medium thickness/μm aluminum thickness/μm perovskite thickness/μm structure length/μm diagonal length of perovskite/μm
    0.1 160 1.6 1.6 880 860
    1 20 0.2 0.2 110 95
    2 20 0.2 0.2 110 36
    6 4 0.04 0.04 22 17
    下载: 导出CSV

    表  2  “1”结构参数

    Table  2.   Structure parameter of unit ‘1’

    frequency/
    THz
    medium thickness/μm aluminum thickness/μm perovskite thickness/μm structure length/μm center diagonal length/μm inside diameter of outer frame/μm outer diameter of outer frame/μm
    0.1 160 1.6 1.6 880 390 740 800
    1 20 0.2 0.2 110 68 96 104
    2 20 0.2 0.2 110 51 96 104
    6 4 0.04 0.04 22 17 19 20
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-05-11
  • 修回日期:  2023-10-13
  • 录用日期:  2023-09-22
  • 网络出版日期:  2023-11-14
  • 刊出日期:  2023-12-15

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