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Phys. Rev. Lett. 102, 213901 (2009) [4 pages]

Anisotropic Metamaterials Emulated by Tapered Waveguides: Application to Optical Cloaking

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Igor I. Smolyaninov1, Vera N. Smolyaninova2, Alexander V. Kildishev3, and Vladimir M. Shalaev3
1Advanced Technologies, BAE Systems, 1250 24 Street, NW, Washington, D.C. 20037, USA
2Department of Physics Astronomy and Geosciences, Towson University, 8000 York Road, Towson, Maryland 21252, USA
3Birck Nanotechnology Center, School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, USA

Received 13 February 2009; revised 30 April 2009; published 27 May 2009

We demonstrate that metamaterial devices requiring anisotropic dielectric permittivity and magnetic permeability may be emulated by specially designed tapered waveguides. This approach leads to low-loss, broadband performance. Based on this technique, we demonstrate broadband electromagnetic cloaking in the visible frequency range on a scale ∼100 times larger than the wavelength.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.213901
DOI:
10.1103/PhysRevLett.102.213901
PACS:
42.25.Bs, 41.20.−q, 42.79.−e