Phys. Rev. Lett. 102, 213901 (2009) [4 pages]Anisotropic Metamaterials Emulated by Tapered Waveguides: Application to Optical CloakingReceived 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
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