Superlensing effect of an anisotropic metamaterial slab with near-zero dynamic mass

Xiaoming Zhou; Gengkai Hu

doi:10.1063/1.3607277

Superlensing effect of an anisotropic metamaterial slab with near-zero dynamic mass

Xiaoming Zhou^*, Gengkai Hu

^*Corresponding author for this work

Ministry of Education in China

Research output: Contribution to journal › Article › peer-review

85 Citations (Scopus)

Abstract

A metamaterial slab of anisotropic mass with one diagonal component being infinity and the other being zero is demonstrated to behave as a superlens for acoustic imaging beyond the diffraction limit. The underlying mechanism for extraordinary transmission of evanescent waves is attributed to the zero mass effect. Microstructure design for such anisotropic lens is also presented. In contrast to the anisotropic superlens based on Fabry-Pérot resonant mechanism, the proposed lens operates without the limitation on lens thickness, thus more flexible in practical applications. Numerical modeling is performed to validate the proposed ideas.

Original language	English
Article number	263510
Journal	Applied Physics Letters
Volume	98
Issue number	26
DOIs	https://doi.org/10.1063/1.3607277
Publication status	Published - 27 Jun 2011
Externally published	Yes

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abstract = "A metamaterial slab of anisotropic mass with one diagonal component being infinity and the other being zero is demonstrated to behave as a superlens for acoustic imaging beyond the diffraction limit. The underlying mechanism for extraordinary transmission of evanescent waves is attributed to the zero mass effect. Microstructure design for such anisotropic lens is also presented. In contrast to the anisotropic superlens based on Fabry-P{\'e}rot resonant mechanism, the proposed lens operates without the limitation on lens thickness, thus more flexible in practical applications. Numerical modeling is performed to validate the proposed ideas.",

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AB - A metamaterial slab of anisotropic mass with one diagonal component being infinity and the other being zero is demonstrated to behave as a superlens for acoustic imaging beyond the diffraction limit. The underlying mechanism for extraordinary transmission of evanescent waves is attributed to the zero mass effect. Microstructure design for such anisotropic lens is also presented. In contrast to the anisotropic superlens based on Fabry-Pérot resonant mechanism, the proposed lens operates without the limitation on lens thickness, thus more flexible in practical applications. Numerical modeling is performed to validate the proposed ideas.

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Superlensing effect of an anisotropic metamaterial slab with near-zero dynamic mass

Abstract

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