Resonance effects in the optical antennas shaped as finite comb-like gratings of noble-metal nanostrips

0396778 - ÚFE 2014 RIV US eng C - Conference Paper (international conference)
Shapoval, O.V. - Nosich, A. I. - Čtyroký, Jiří
Resonance effects in the optical antennas shaped as finite comb-like gratings of noble-metal nanostrips.
INTEGRATED OPTICS: PHYSICS AND SIMULATIONS ( Proceedings of SPIE 8781). Vol. 8781. BELLINGHAM: SPIE, 2013 - (Cheben, P.; Čtyroký, P.; MolinaFernandez, I.). ISBN 978-0-8194-9583-9. ISSN 0277-786X.
[Conference on Integrated Optics - Physics and Simulations. Prague (CZ), 17.04.2013-18.04.2013]
Institutional support: RVO:67985882
Keywords : noble-metal thin strips * nanoantennas * grating resonances
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

Active research into nanoscience and nanotechnologies that are available for nano fabrication have lead to considerable progress in the understanding of the optical properties of metals on nanometer scale. Here, noble-metal strip-like nanostructures are attractive objects of research. Indeed, they can be easily manufactured and serve as building blocks of optical nanoantennas and sensors with unique geometry-dependent optical properties. This is because they display intensive localized surface-plasmon resonances in the visible and far-infrared ranges that lead to near-and far-field enhancement effects. Thanks to surface-plasmon resonances, multi-element finite gratings have attractive properties of extraordinarily large reflection, absorption, and transmission, depending on the arrangement of the elementary cell of the grating. All these phenomena are greatly influenced by the so-called grating resonances which appear due to periodicity
Permanent Link: http://hdl.handle.net/11104/0224498