山东科学 ›› 2021, Vol. 34 ›› Issue (1): 28-34.doi: 10.3976/j.issn.1002-4026.2021.01.004

• 新材料 • 上一篇    下一篇

基于极化不敏感超材料的类电磁诱导透明特性研究

李荣,郑文   

  1. 滨州学院 航空工程学院 山东省航空材料与器件工程技术研究中心,山东 滨州 256603
  • 收稿日期:2020-09-03 出版日期:2021-02-15 发布日期:2021-01-29
  • 作者简介:李荣(1981—),女,讲师,硕士,研究方向为电磁超材料特性。E-mail:lirong19810810@163.com
  • 基金资助:
    滨州学院校级科研项目(BZXYLG1928

Characteristics of the analog of electromagnetically induced transparency in case of a polarization-insensitive metamaterial

LI Rong,ZHENG Wen   

  1. Shandong Engineering Research Center of Aeronautical Materials and Devices, College of Aeronautical Engineering, Binzhou University,Binzhou 256603, China

  • Received:2020-09-03 Online:2021-02-15 Published:2021-01-29

摘要: 设计了一种由4条金属直线和1个圆环构成的类电磁诱导透明超材料,当电磁波垂直入射到该超材料表面时,其具有水平极化和垂直极化不敏感特性。仿真了超材料的传输曲线特性,以及其表面电流分布特点,计算了相位传输曲线和群折射率,并对其介电常数传感特性进行了分析。计算所得群折射率最大值可达380,说明该超材料可用于制作慢光器件。用于制作传感器时,其DFOM值约为20.13,与前人所设计的传感器相比,具有较高的灵敏特性。研究结果表明,该超材料在制作慢光器件和传感器件方面具有一定的应用价值。

关键词: 类电磁诱导透明, 超材料, 极化不敏感, 传感器, 群折射率

Abstract: In this study, an electromagnetically induced transparent metamaterial structure with four metal lines and a ring is proposed. It exhibits the characteristics of horizontal and vertical polarization insensitivity when the electromagnetic wave is perpendicular to its surface. The characteristics of the metamaterial transmission curve and its surface current distribution have been numerically calculated and simulated. Further, the phase propagation curve and group refractive index are calculated and analyzed. The maximum group refractive index can reach up to 380, indicating that the metamaterial can be used to fabricate slow optical devices. When this metamaterial is used to manufacture a refractive index sensor, the DFOM value is approximately 20.13, indicating a higher sensitivity compared with those of the existing sensors. Results show that the metamaterial can be applied to manufacture slow optical devices and refractive index sensors.

Key words: analog of electromagnetically induced transparency, metamaterial, polarization-insensitive, refractive index sensor, group refractive index

中图分类号: 

  • O441