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Tuning the terahertz trapped modes of conductively coupled Fano-resonators in reflectional and rotational symmetry
Zheng, XB; Zhao, ZY; Peng, W; Zhang, JB; Zhao, HW; Shi, WZ
2018
Source PublicationOPTICAL MATERIALS EXPRESS
ISSN2159-3930
Volume8Issue:1Pages:105-118
Subtype期刊论文
AbstractWe experimentally investigate the terahertz (THz) response of conductively coupled asymmetric split ring resonator-based meta-molecules in the layout of reflection and rotational symmetry. In the reflectional symmetry case, the horizontally polarized THz excites a couple of trapped modes: the low-order one is a coupled Fano-resonance, and the high-order one is a decoupled dipole oscillator. The vertically polarized THz excites an inductive-capacitor resonance as a low-order trapped mode below the frequency of a high-order intrinsic mode. The quality factors (Q factors) of trapped modes decrease with the displacement of top-and-bottom gap increasing. In the rotational symmetry case, the horizontally polarized THz excites a single trapped mode owing to coupled Fano-resonance. The vertically polarized THz excites a high-order trapped mode of coupled multiple dipole oscillations beyond the frequency of intrinsic low-order dipole oscillation. The Q factors of trapped modes increase with the displacement of the top-and-bottom gap increase. For the first time, our results reveal the trapped modes' evolution owing to the interaction of Fano-resonators conductively coupled under different symmetry. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
KeywordElectromagnetically-induced Transparency Plasmon-induced Transparency Hyperbolic Metamaterials Active Control Dark Analog Metamolecule Light
DOI10.1364/OME.8.000105
Indexed BySCI
Language英语
WOS IDWOS:000419099400013
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/29200
Collection中科院上海应用物理研究所2011-2019年
Affiliation1.Zheng, XB
2.Zhao, ZY
3.Peng, W
4.Zhang, JB
5.Zhao, HW
6.Shi, WZ
Recommended Citation
GB/T 7714
Zheng, XB,Zhao, ZY,Peng, W,et al. Tuning the terahertz trapped modes of conductively coupled Fano-resonators in reflectional and rotational symmetry[J]. OPTICAL MATERIALS EXPRESS,2018,8(1):105-118.
APA Zheng, XB,Zhao, ZY,Peng, W,Zhang, JB,Zhao, HW,&Shi, WZ.(2018).Tuning the terahertz trapped modes of conductively coupled Fano-resonators in reflectional and rotational symmetry.OPTICAL MATERIALS EXPRESS,8(1),105-118.
MLA Zheng, XB,et al."Tuning the terahertz trapped modes of conductively coupled Fano-resonators in reflectional and rotational symmetry".OPTICAL MATERIALS EXPRESS 8.1(2018):105-118.
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