All-angle negative refraction and imaging in a bulk medium made of metallic nanowires in the visible region

Liu, Yongmin and Bartal, Guy and Zhang, Xiang. (2008) All-angle negative refraction and imaging in a bulk medium made of metallic nanowires in the visible region. Optics Express, 16 (20). pp. 15439-15448. ISSN 1094-4087

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Abstract

We theoretically demonstrated that all-angle negative refraction and imaging can be implemented by metallic nanowires embedded in a dielectric matrix. When the separation between the nanowires is much smaller than the incident wavelength, these structures can be characterized as indefinite media, whose effective permittivities perpendicular and parallel to the wires are opposite in signs. Under this condition, the dispersion diagram is hyperbolic for transverse magnetic waves propagating in the nanowire system, thereby exhibiting all-angle negative refraction. Such indefinite media can operate over a broad frequency range (visible to near-infrared) far from any resonances, thus they offer an effective way to manipulate light propagation in bulk media with low losses, allowing potential applications in photonic devices

Item Type: Article
Additional Information: Optical imaging
InterNano Taxonomy: Nanoscale Objects and Nanostructured Materials > Nanowires
Collections: Nanomanufacturing Research Collection
Depositing User: Moureen Kemei
Date Deposited: 07 Apr 2010 19:51
Last Modified: 07 Apr 2010 19:51
URI: http://eprints.internano.org/id/eprint/415

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