Spectral Properties of Neumann-Poincaré Operator and Anomalous Localized Resonance in Elasticity Beyond Quasi-Static Limit

被引:0
|
作者
Youjun Deng
Hongjie Li
Hongyu Liu
机构
[1] Central South University,School of Mathematics and Statistics
[2] The Chinese University of Hong Kong,Department of Mathematics
[3] City University of Hong Kong,Department of Mathematics
来源
Journal of Elasticity | 2020年 / 140卷
关键词
Anomalous localized resonance; Negative elastic materials; Core-shell structure; Beyond quasistatic limit; Neumann-Poincaré operator; Spectral; 35R30; 35B30; 35Q60; 47G40;
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学科分类号
摘要
This paper is concerned with the polariton resonances and their application for cloaking due to anomalous localized resonance (CALR) for the elastic system within finite frequency regime beyond the quasi-static approximation. We first derive the complete spectral system of the Neumann-Poincaré operator associated with the elastic system in R3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathbb{R}^{3}$\end{document} within the finite frequency regime. Based on the obtained spectral results, we construct a broad class of elastic configurations that can induce polariton resonances beyond the quasi-static limit. As an application, the invisibility cloaking effect is achieved through constructing a class of core-shell-matrix metamaterial structures provided the source is located inside a critical radius. Moreover, if the source is located outside the critical radius, it is proved that there is no resonance.
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页码:213 / 242
页数:29
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