超材料
平面的
偶极子
联轴节(管道)
谐振器
分裂环谐振器
物理
张量(固有定义)
集合(抽象数据类型)
块(置换群论)
拓扑(电路)
领域(数学)
光学
计算机科学
几何学
数学
量子力学
材料科学
纯数学
计算机图形学(图像)
组合数学
冶金
程序设计语言
作者
J. Petschulat,Christoph Menzel,Carsten Rockstuhl,A. Chipouline,Andreas Tuennermann,F. Lederer,Thomas Pertsch
出处
期刊:Cornell University - arXiv
日期:2009-09-03
被引量:2
摘要
We present an analytical model which permits the calculation of effective material parameters for planar metamaterials consisting of arbitrary unit cells (metaatoms) formed by a set of straight wire sections of potentially different shape. The model takes advantage of resonant electric dipole oscillations in the wires and their mutual coupling. The pertinent form of the metaatom determines the actual coupling features. This procedure represents a kind of building block model for quite different metaatoms. Based on the parameters describing the individual dipole oscillations and their mutual coupling the entire effective metamaterial tensor can be determined. By knowing these parameters for a certain metaatom it can be systematically modified to create the desired features. Performing such modifications effective material properties as well as the far field intensities remain predictable. As an example the model is applied to reveal the occurrence of optical activity if the split ring resonator metaatom is modified to L- or S-shaped metaatoms.
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