纳米异向介质的缺陷模

摘要

在实际 THz 负折射指数物质应用中,形状的改变和现有的光刻技术的精度,对负折射特性造成什么影响研究在实际工程设计中具有重要意义.下面利用有限积分法模拟形状变化和光刻精度产生的缺陷对负折射谐振频率和通带的影响.得出由于谐振环之间的耦合,SRR 对称破缺影响谐振频率和通带.光刻技术的精度满足 THz 负折射指数物质的要求.%In practical application of nano negative refractive index Metamaterials, the effects of shape change and opti-cal printing precision on nano negative refractive index Metamaterials are very important. Finite integration technique (FIT) is used to simulate the effects of shape change and optical printing precision on resonant frequency and the pass band of negative refractive index material. Broken-symmetry of split ring resonators (SRR) has effect on resonant fre-quency and pass band because of the coupling between wires and SRR. Optical printing precision can accommotate the demand of perfect lens made of negative refractive index materials.