Demonstration of sharp multiple Fano resonances in optical metamaterials

Yuto Moritake; Yoshiaki Kanamori; Kazuhiro Hane

doi:10.1364/OE.24.009332

Demonstration of sharp multiple Fano resonances in optical metamaterials

Yuto Moritake, Yoshiaki Kanamori, Kazuhiro Hane

Tohoku University

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

We experimentally demonstrated multiple Fano resonances in optical metamaterials. By combination of two different sized asymmetric-double-bar (ADB) structures, triple Fano resonance was observed in the near-infrared region. In addition to Fano resonance due to anti-phase modes in isolated ADB structures, an anti-phase mode due to coupling among different sized ADBs was observed. Dependence of characteristics of resonances on size difference was also investigated. At specific conditions of size difference, quality factors of three Fano resonances were improved compared with ADB metamaterials consisting of one kind of ADBs. The results will help to realize applications using metamaterial resonators with multiple functionalities and high performance.

Original language	English
Pages (from-to)	9332-9339
Number of pages	8
Journal	Optics Express
Volume	24
Issue number	9
DOIs	https://doi.org/10.1364/OE.24.009332
Publication status	Published - 2016 May 2

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title = "Demonstration of sharp multiple Fano resonances in optical metamaterials",

abstract = "We experimentally demonstrated multiple Fano resonances in optical metamaterials. By combination of two different sized asymmetric-double-bar (ADB) structures, triple Fano resonance was observed in the near-infrared region. In addition to Fano resonance due to anti-phase modes in isolated ADB structures, an anti-phase mode due to coupling among different sized ADBs was observed. Dependence of characteristics of resonances on size difference was also investigated. At specific conditions of size difference, quality factors of three Fano resonances were improved compared with ADB metamaterials consisting of one kind of ADBs. The results will help to realize applications using metamaterial resonators with multiple functionalities and high performance.",

author = "Yuto Moritake and Yoshiaki Kanamori and Kazuhiro Hane",

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AU - Moritake, Yuto

AU - Kanamori, Yoshiaki

AU - Hane, Kazuhiro

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PY - 2016/5/2

Y1 - 2016/5/2

N2 - We experimentally demonstrated multiple Fano resonances in optical metamaterials. By combination of two different sized asymmetric-double-bar (ADB) structures, triple Fano resonance was observed in the near-infrared region. In addition to Fano resonance due to anti-phase modes in isolated ADB structures, an anti-phase mode due to coupling among different sized ADBs was observed. Dependence of characteristics of resonances on size difference was also investigated. At specific conditions of size difference, quality factors of three Fano resonances were improved compared with ADB metamaterials consisting of one kind of ADBs. The results will help to realize applications using metamaterial resonators with multiple functionalities and high performance.

AB - We experimentally demonstrated multiple Fano resonances in optical metamaterials. By combination of two different sized asymmetric-double-bar (ADB) structures, triple Fano resonance was observed in the near-infrared region. In addition to Fano resonance due to anti-phase modes in isolated ADB structures, an anti-phase mode due to coupling among different sized ADBs was observed. Dependence of characteristics of resonances on size difference was also investigated. At specific conditions of size difference, quality factors of three Fano resonances were improved compared with ADB metamaterials consisting of one kind of ADBs. The results will help to realize applications using metamaterial resonators with multiple functionalities and high performance.

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Demonstration of sharp multiple Fano resonances in optical metamaterials

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