Connection between extraordinary transmission and negative refraction in a prism of stacked sub-wavelength hole arrays

A prism engineered by stacking sub-wavelength hole arrays is shown as a route to negative refraction in any frequency range. We analyse numerically and experimentally at the near field zone, several propagation regimes and bands with orthogonal polarizations, and find that negative refraction is int...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2009-08, Vol.42 (16), p.165504-165504 (4)
Main Authors: Beruete, M, Navarro-Cía, M, Falcone, F, Campillo, I, Sorolla, M
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optics
Physics
Wave optics
Wave propagation, transmission and absorption
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Summary:A prism engineered by stacking sub-wavelength hole arrays is shown as a route to negative refraction in any frequency range. We analyse numerically and experimentally at the near field zone, several propagation regimes and bands with orthogonal polarizations, and find that negative refraction is intimately linked to the extraordinary transmission resonance of sub-wavelength hole arrays. Negative indices of refraction start from near to zero values for the lower mode while for the second one they are positive. The p-polarization component has a positive refractive index within both bands. The way to engineering negative refraction devices in any region of the spectrum is open.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/42/16/165504