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Title: Complementary structure for designer localized surface plasmons
Authors: Gao, Zhen
Gao, Fei
Zhang, Youming
Zhang, Baile
Keywords: Magnetic fields
Electric fields
Issue Date: 2015
Source: Gao, Z., Gao, F., Zhang, Y., & Zhang, B. (2015). Complementary structure for designer localized surface plasmons. Applied Physics Letters, 107(19), 191103-.
Series/Report no.: Applied Physics Letters
Abstract: Magnetic localized surface plasmons (LSPs) supported on metallic structures corrugated by very long and curved grooves have been recently proposed and demonstrated on an extremely thin metallic spiral structure (MSS) in the microwave regime. However, the mode profile for the magnetic LSPs was demonstrated by measuring only the electric field, not the magnetic field. Here, based on Babinet's principle, we propose a Babinet-inverted, or complementary MSS whose electric/magnetic mode profiles match the magnetic/electric mode profiles of MSS. This complementarity of mode profiles allows mapping the magnetic field distribution of magnetic LSP mode profile on MSS by measuring the electric field distribution of the corresponding mode on complementary MSS. Experiment at microwave frequencies also demonstrate the use of complementary MSS in sensing refractive-index change in the environment.
ISSN: 0003-6951
DOI: 10.1063/1.4935360
Rights: © 2015 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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