One path to acoustic cloaking
Top Cited Papers
Open Access
- 1 March 2007
- journal article
- Published by IOP Publishing in New Journal of Physics
- Vol. 9 (3), 45
- https://doi.org/10.1088/1367-2630/9/3/045
Abstract
A complete analysis of coordinate transformations in elastic media by Milton et al has shown that, in general, the equations of motion are not form invariant and thus do not admit transformation-type solutions of the type discovered by Pendry et al for electromagnetics. However, in a two-dimensional (2D) geometry, the acoustic equations in a fluid are identical in form to the single polarization Maxwell equations via a variable exchange that also preserves boundary conditions. We confirm the existence of transformation-type solutions for the 2D acoustic equations with anisotropic mass via time harmonic simulations of acoustic cloaking. We discuss the possibilities of experimentally demonstrating acoustic cloaking and analyse why this special equivalence of acoustics and electromagnetics occurs only in 2D.Keywords
This publication has 15 references indexed in Scilit:
- Metamaterial Electromagnetic Cloak at Microwave FrequenciesScience, 2006
- Full-wave simulations of electromagnetic cloaking structuresPhysical Review E, 2006
- Notes on conformal invisibility devicesNew Journal of Physics, 2006
- Optical Conformal MappingScience, 2006
- Controlling Electromagnetic FieldsScience, 2006
- On the cloaking effects associated with anomalous localized resonanceProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2006
- Achieving transparency with plasmonic and metamaterial coatingsPhysical Review E, 2005
- Anisotropic conductivities that cannot be detected by EITPhysiological Measurement, 2003
- On nonuniqueness for Calderón’s inverse problemMathematical Research Letters, 2003
- Invisible bodiesJournal of the Optical Society of America, 1975