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Title: Guiding and routing surface plasmons with transformation-invariant metamaterials
Authors: Huang, Yao
Zhang, Jingjing
Qiang, Bo
Xu, Zhengji
Wang, Qi Jie
Luo, Yu
Keywords: Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Issue Date: 2022
Source: Huang, Y., Zhang, J., Qiang, B., Xu, Z., Wang, Q. J. & Luo, Y. (2022). Guiding and routing surface plasmons with transformation-invariant metamaterials. Journal of Optics, 24(1), 015003-.
Project: MOE2018-T2-2-189 (S)
Journal: Journal of Optics
Abstract: Rough metallic surfaces cause severe scattering to surface plasmon polaritons (SPPs), thereby limiting the SPP transmission efficiency. Here, we propose a general scheme to design ultra-compact plasmonic routers that can confine and guide SPPs on arbitrarily shaped rough surface. Our strategy makes use of recently proposed transformation-invariant metamaterials. To illustrate the advantages of this approach, we perform finite-element simulations, showing that the performance of the designed surface-wave router is robust against the change in thickness. As a result, a /6-thick transformation-invariant metamaterial layer can significantly suppress scattering from arbitrarily shaped metallic bumps or crevices. We also give a blueprint to implement such ultracompact surface-wave routers based on periodic metal/ epsilon-near-zero (ENZ) material stackings.
ISSN: 2040-8978
DOI: 10.1088/2040-8986/ac38c5
Schools: School of Electrical and Electronic Engineering 
School of Physical and Mathematical Sciences 
Research Centres: CNRS International NTU THALES Research Alliances 
Rights: © 2021 IOP Publishing Ltd. All rights reserved. This is an author-created, un-copyedited version of an article accepted for publication in Journal of Optics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
SPMS Journal Articles

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