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Title: Bidirectional waveguide coupling with plasmonic Fano nanoantennas

Abstract

We introduce the concept of a bidirectional, compact single-element Fano nanoantenna that allows for directional coupling of light in opposite directions of a high-index dielectric waveguide for two different operation wavelengths. We utilize a Fano resonance to tailor the radiation phases of a gold nanodisk and a nanoslit that is inscribed into the nanodisk to realize bidirectional scattering. We show that this Fano nanoantenna operates as a bidirectional waveguide coupler at telecommunication wavelengths and, thus, is ideally suitable for integrated wavelength-selective light demultiplexing.

Authors:
; ; ; ;  [1]
  1. Nonlinear Physics Centre and Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200 (Australia)
Publication Date:
OSTI Identifier:
22314701
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COUPLING; DIELECTRIC MATERIALS; NANOSTRUCTURES; PLASMONS; SCATTERING; WAVEGUIDES

Citation Formats

Guo, Rui, Decker, Manuel, E-mail: manuel.decker@anu.edu.au, Staude, Isabelle, Neshev, Dragomir N., and Kivshar, Yuri S. Bidirectional waveguide coupling with plasmonic Fano nanoantennas. United States: N. p., 2014. Web. doi:10.1063/1.4892651.
Guo, Rui, Decker, Manuel, E-mail: manuel.decker@anu.edu.au, Staude, Isabelle, Neshev, Dragomir N., & Kivshar, Yuri S. Bidirectional waveguide coupling with plasmonic Fano nanoantennas. United States. doi:10.1063/1.4892651.
Guo, Rui, Decker, Manuel, E-mail: manuel.decker@anu.edu.au, Staude, Isabelle, Neshev, Dragomir N., and Kivshar, Yuri S. Mon . "Bidirectional waveguide coupling with plasmonic Fano nanoantennas". United States. doi:10.1063/1.4892651.
@article{osti_22314701,
title = {Bidirectional waveguide coupling with plasmonic Fano nanoantennas},
author = {Guo, Rui and Decker, Manuel, E-mail: manuel.decker@anu.edu.au and Staude, Isabelle and Neshev, Dragomir N. and Kivshar, Yuri S.},
abstractNote = {We introduce the concept of a bidirectional, compact single-element Fano nanoantenna that allows for directional coupling of light in opposite directions of a high-index dielectric waveguide for two different operation wavelengths. We utilize a Fano resonance to tailor the radiation phases of a gold nanodisk and a nanoslit that is inscribed into the nanodisk to realize bidirectional scattering. We show that this Fano nanoantenna operates as a bidirectional waveguide coupler at telecommunication wavelengths and, thus, is ideally suitable for integrated wavelength-selective light demultiplexing.},
doi = {10.1063/1.4892651},
journal = {Applied Physics Letters},
number = 5,
volume = 105,
place = {United States},
year = {Mon Aug 04 00:00:00 EDT 2014},
month = {Mon Aug 04 00:00:00 EDT 2014}
}