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Published in

Optica, Optics Express, 8(19), p. 7921, 2011

DOI: 10.1364/oe.19.007921

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Multi-resonant metamaterials based on UT-shaped nano-aperture antennas

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

We demonstrate a compact multi-resonant metamaterial structure based on integrated U- and T-shaped nano-aperture antennas. We investigate the physical origin of the multi-resonant behavior and determine the parameter dependence of the nano-aperture antennas both experimentally and numerically. We also show enhanced field distribution in the apertures at the corresponding resonance wavelengths. Both multi-spectral response and enhanced near field distributions can open up exciting new opportunities in applications ranging from subwavelength optics and optoelectronics to chemical and biosensing.