Theoretical study of subwavelength imaging by acoustic metamaterial slabs
arXiv:0905.3866 · doi:10.1063/1.3153976
Abstract
We investigate theoretically subwavelength imaging by acoustic metamaterial slabs immersed in the liquid matrix. A near-field subwavelength image formed by evanescent waves is achieved by a designed metamaterial slab with negative mass density and positive modulus. A subwavelength real image is achieved by a designed metamaterial slab with simultaneously negative mass density and modulus. These results are expected to shed some lights on designing novel devices of acoustic metamaterials.
arXiv comment11 pages, 5 figures
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