Manipulating topological valley modes in plasmonic metasurfaces
Publication available at
Author(s)
Proctor, M
Huidobro, PA
Maier, SA
Craster, RV
Makwana, MP
Type
Journal Article
Abstract
The coupled light-matter modes supported by plasmonic metasurfaces can be combined with topological principles to yield subwavelength topological valley states of light. We give a systematic presentation of the topological valley states available for lattices of metallic nanoparticles: All possible lattices with hexagonal symmetry are considered, as well as valley states emerging on a square lattice. Several unique effects which have yet to be explored in plasmonics are identified, such as robust guiding, filtering and splitting of modes, as well as dual-band effects. We demonstrate these by means of scattering computations based on the coupled dipole method that encompass the full electromagnetic interactions between nanoparticles.
Date Issued
2020-03-01
Date Acceptance
2019-12-21
ISSN
2192-8606
Publisher
De Gruyter Open
Start Page
657
End Page
665
Journal / Book Title
Nanophotonics
Volume
9
Issue
3
Copyright Statement
© 2020 Matthew Proctor et al., published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0
Public License (https://creativecommons.org/licenses/by/4.0/)
Public License (https://creativecommons.org/licenses/by/4.0/)
Sponsor
The Leverhulme Trust
Grant Number
RPG-2016-365
Subjects
Science & Technology
Technology
Physical Sciences
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Optics
Physics, Applied
Science & Technology - Other Topics
Materials Science
Physics
metal nanoparticles
plasmonic metasurface
topological nanophotonics
topological plasmonics
topological valley modes
STATES
SPIN
cond-mat.mes-hall
cond-mat.mes-hall
physics.optics
0205 Optical Physics
0906 Electrical and Electronic Engineering
1007 Nanotechnology
Publication Status
Published
Date Publish Online
2020-02-04