论文标题

复杂平面中的逆设计:操纵准正常模式

Inverse Design in the Complex Plane: Manipulating Quasi-Normal Modes

论文作者

Capers, James R, Patient, Dean A, Horsley, Simon A R

论文摘要

利用材料的频率响应可以分解为系统支持的准正常模式的事实,我们提出了两种直接操纵复杂平面中准正常模式的复杂频率的方法。我们首先考虑一种“特征 - 透明度”方法,该方法使人们能够找到如何移动各处的结构的介电效率,以便将单个准正常模式放置在所需的复杂频率下。其次,然后我们将扰动理论用于准正常模式,以迭代改变结构,直到给定的准正常模式选择在所需的复杂频率处。

Utilising the fact that the frequency response of a material can be decomposed into the quasi-normal modes supported by the system, we present two methods to directly manipulate the complex frequencies of quasi-normal modes in the complex plane. We first consider an `eigen-permittivity' approach that allows one to find how to shift the permittivity of the structure everywhere in order to place a single quasi-normal mode at a desired complex frequency. Secondly, we then use perturbation theory for quasi-normal modes to iteratively change the structure until a given selection of quasi-normal modes occur at desired complex frequencies.

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