Negative refraction of acoustic waves in two-dimensional sonic crystals
- 18 July 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 72 (3), 033108
- https://doi.org/10.1103/physrevb.72.033108
Abstract
Negative refractions of acoustic waves in a two-dimensional (2D) sonic crystal were studied both experimentally and theoretically. By calculating the acoustic band structure and equifrequency surfaces, we theoretically analyzed the acoustic single-beam negative refraction in the first band operating in the ultrasonic regime. A 2D square sonic crystal was constructed with steel cylinders arranged as square arrays of lattice constant. A scanning transmission measurement of spatial distribution was carried out to establish the acoustic refraction of a single Gaussian beam. It was demonstrated that the negative refraction is strongly dependent on both frequencies and incident angles, which shows great potential in acoustic devices.
Keywords
This publication has 28 references indexed in Scilit:
- Negative refraction by photonic crystalsNature, 2003
- Experimental Verification of a Negative Index of RefractionScience, 2001
- Microwave transmission through a two-dimensional, isotropic, left-handed metamaterialApplied Physics Letters, 2001
- Theory of light propagation in strongly modulated photonic crystals: Refractionlike behavior in the vicinity of the photonic band gapPhysical Review B, 2000
- Anomalous refractive properties of photonic crystalsJournal of the Optical Society of America A, 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
- Low frequency plasmons in thin-wire structuresJournal of Physics: Condensed Matter, 1998
- Extremely Low Frequency Plasmons in Metallic MesostructuresPhysical Review Letters, 1996
- THE ELECTRODYNAMICS OF SUBSTANCES WITH SIMULTANEOUSLY NEGATIVE VALUES OF $\epsilon$ AND μSoviet Physics Uspekhi, 1968