Abstract
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.
Original language | English |
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Article number | 121904 |
Journal | Applied Physics Letters |
Volume | 98 |
Issue number | 12 |
DOIs | |
Publication status | Published - 21 Mar 2011 |