An elastic metamaterial with simultaneously negative mass density and bulk modulus
Top Cited Papers
- 20 June 2011
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 98 (25), 251907
- https://doi.org/10.1063/1.3597651
Abstract
In this letter, an elastic metamaterial which exhibits simultaneously negative effective mass density and bulk modulus is presented with a single unit structure made of solid materials. The double-negative properties are achieved through a chiral microstructure that is capable of producing simultaneous translational and rotational resonances. The negative effective mass density and effective bulk modulus are numerically determined and confirmed by the analysis of wave propagation. The left-handed wave propagation property of this metamaterial is demonstrated by the negative refraction of acoustic waves.Keywords
Funding Information
- National Natural Science Foundation of China (10832002, 10972036)
- Air Force Office of Scientific Research (AF 9550-10-0061)
This publication has 20 references indexed in Scilit:
- Metamaterial with Simultaneously Negative Bulk Modulus and Mass DensityPhysical Review Letters, 2007
- Ultrasonic metamaterials with negative modulusNature Materials, 2006
- A positive future for double-negative metamaterialsIEEE Transactions on Microwave Theory and Techniques, 2005
- Cerenkov Radiation in Photonic CrystalsScience, 2003
- Experimental Verification of a Negative Index of RefractionScience, 2001
- Negative Refraction Makes a Perfect LensPhysical Review Letters, 2000
- Locally Resonant Sonic MaterialsScience, 2000
- Composite Medium with Simultaneously Negative Permeability and PermittivityPhysical Review Letters, 2000
- Magnetism from conductors and enhanced nonlinear phenomenaIEEE Transactions on Microwave Theory and Techniques, 1999
- THE ELECTRODYNAMICS OF SUBSTANCES WITH SIMULTANEOUSLY NEGATIVE VALUES OF $\epsilon$ AND μSoviet Physics Uspekhi, 1968