Achieving Subdiffraction Imaging through Bound Surface States in Negative Refraction Photonic Crystals in the Near-Infrared Range

2008/03/06 by R. Chatterjee, Rohit Chatterjee, N. C. Panoiu +14 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Metamaterials and Metasurfaces Applications #Photonic Crystals and Applications #Plasmonic and Surface Plasmon Research #physics.optics

paper · pdf · doi:10.1103/physrevlett.100.187401

arxiv created 2008/03/06 · openalex publication_date 2008/05/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report the observation of imaging beyond the diffraction limit due to bound surface states in negative refraction photonic crystals. We achieve an effective negative index figure of merit [-Re(n)/Im(n)] of at least 380, approximately 125x improvement over recent efforts in the near-infrared range, with a 0.4 THz bandwidth. Supported by numerical and theoretical analyses, the observed near-field resolution is 0.47lambda, clearly smaller than the diffraction limit of 0.61lambda. Importantly, we show this subdiffraction imaging is due to the resonant excitation of surface slab modes.

Citations

• THE ELECTRODYNAMICS OF SUBSTANCES WITH SIMULTANEOUSLY NEGATIVE VALUES OF ε AND μ

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