Theoretical study of subwavelength imaging by acoustic metamaterial slabs

Details Theoretical study of subwavelength imaging by acoustic metamaterial slabs Theoretical study of subwavelength imaging by acoustic metamaterial slabs

2009-05-24

arxiv.org/abs/0905.3866v2

J. Appl. Phys. 105, 124909 (2009)

Physics

Classical Physics

11 pages, 5 figures

Scientific paper

10.1063/1.3153976

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.

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