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

R. Chatterjee, N. C. Panoiu, K. Liu, Z. Dios, M. B. Yu, M. T. Doan, L. J. Kaufman, R. M. Osgood, and C. W. Wong
Phys. Rev. Lett. 100, 187401 – Published 5 May 2008

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, 125× 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 0.47λ, clearly smaller than the diffraction limit of 0.61λ. Importantly, we show this subdiffraction imaging is due to the resonant excitation of surface slab modes.

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  • Received 16 November 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.187401

©2008 American Physical Society

Authors & Affiliations

R. Chatterjee1, N. C. Panoiu2, K. Liu1, Z. Dios1, M. B. Yu3, M. T. Doan3, L. J. Kaufman1, R. M. Osgood1, and C. W. Wong1

  • 1Columbia University, New York, New York 10027, USA
  • 2University College London, Torrington Place, London WC1E 7JE, United Kingdom
  • 3The Institute of Microelectronics, Singapore 117685, Singapore

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Issue

Vol. 100, Iss. 18 — 9 May 2008

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