Pander Adam, Takano Keisuke, Hatta Akimitsu, Nakajima Makoto, Furuta Hiroshi
Opt Express. 2020 Jan 6;28(1):607-625. doi: 10.1364/OE.381817.
In this work, shape-dependent mid-infrared properties of novel split ring resonator (SRR) metamaterials composed of single-walled carbon nanotube (CNT) forest are investigated. The introduction of the gap and dip shape to the closed ring geometry reduced the total reflectance by 15%, due to the generation of circular currents and LC resonances in SRRs. The increase of the SRR height reduced the total IR reflectance by 25%. Unique one-dimensional anisotropic electric and photonic properties of CNTs, combined with an artificial refractive index induced in SRR circuits, will stimulate the development of new optoelectronics applications.
在这项工作中，研究了由单壁碳纳米管（CNT）森林组成的新型裂环谐振器（SRR）超材料的形状依赖性中红外特性。在闭环几何结构中引入间隙和凹陷形状，由于SRR中产生圆形电流和LC谐振，使总反射率降低了15%。SRR高度的增加使红外总反射率降低了25%。碳纳米管独特的一维各向异性电学和光学特性，与SRR电路中感应的人工折射率相结合，将推动新型光电子应用的发展。
