Subwavelength imaging by a left-handed material superlens

2003/04/30 by X. S. Rao, C. K. Ong
Engineering · Materials Science · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Metamaterials and Metasurfaces Applications #Plasmonic and Surface Plasmon Research #cond-mat.mtrl-sci

paper · pdf · doi:10.1103/physreve.68.067601

published as Phys. Rev. E 68, 067601 (2003) · 4 pages, 3 figures

arxiv created 2003/07/02 · openalex publication_date 2003/12/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this work, a finite-difference time-domain (FDTD) method is employed to justify the superlensing effect of left-handed material (LHM) slabs. Our results demonstrate that subwavelength resolution can be achieved by LHM slabs with certain parameters. We present the dynamic feature of the imaging process and the dependence of physical parameters on the performance of the superlens. These results help to clarify the diverse FDTD results reported previously. We also show that the achievable resolution is limited by the absorption and thickness of the LHM slabs, which introduces difficulties in practical applications of the superlens.

Citations

• Amplification of evanescent waves in a lossy left-handed material slab

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