Controlling elastic waves with isotropic materials

被引：46

作者：

Chang, Zheng ^{[2
]}

Hu, Jin ^{[1
]}

Hu, Gengkai ^{[2
]}

Tao, Ran ^{[1
]}

Wang, Yue ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China

[2] Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 12期

基金：

中国国家自然科学基金;

关键词：

CLOAK;

D O I：

10.1063/1.3569598

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Design of functional devices with isotropic materials has significant advantages, as regards easy fabrication and broadband application. In this letter, we present a method to derive isotropic transformation material parameters for elastodynamics under local conformal transformation. The transformed material parameters are then applied to design a beam bender, a four-beam antenna and an approximate carpet cloak for elastic wave with isotropic materials, validated by the numerical simulations. (C) 2011 American Institute of Physics. [doi:10.1063/1.3569598]

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