Plasmonic Spectral Splitting in Ring/Rod Metasurface

We report spectral splitting behaviors based on Fano resonances in a novel simple planar metasurface composed of gold nanobars and nanorings. Multiple plasmonic modes and sharp Fano effects are achieved in a broadband transmittance spectrum by exploiting the rotational symmetry of the metasurface. T...

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Main Authors: Naseer Muhammad, Adnan Daud Khan, Zi-Lan Deng, Karim Khan, Ashish Yadav, Qiang Liu, Zhengbiao Ouyang
Format: Article
Language:English
Published: MDPI AG 2017-11-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/7/11/397
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author Naseer Muhammad
Adnan Daud Khan
Zi-Lan Deng
Karim Khan
Ashish Yadav
Qiang Liu
Zhengbiao Ouyang
author_facet Naseer Muhammad
Adnan Daud Khan
Zi-Lan Deng
Karim Khan
Ashish Yadav
Qiang Liu
Zhengbiao Ouyang
author_sort Naseer Muhammad
collection DOAJ
description We report spectral splitting behaviors based on Fano resonances in a novel simple planar metasurface composed of gold nanobars and nanorings. Multiple plasmonic modes and sharp Fano effects are achieved in a broadband transmittance spectrum by exploiting the rotational symmetry of the metasurface. The transmission properties are effectively modified and tuned by modulating the structural parameters. The highest single side Q-factor and FoM which reaches 196 and 105 are observed at Fano resonances. Our proposed design is relatively simple and can be applied for various applications such as multi-wavelength highly sensitive plasmonic sensors, switching, and slow light devices.
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spelling doaj.art-5ec6537334f0449f8b468c88636865d22022-12-22T03:16:50ZengMDPI AGNanomaterials2079-49912017-11-0171139710.3390/nano7110397nano7110397Plasmonic Spectral Splitting in Ring/Rod MetasurfaceNaseer Muhammad0Adnan Daud Khan1Zi-Lan Deng2Karim Khan3Ashish Yadav4Qiang Liu5Zhengbiao Ouyang6THz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Shenzhen 518060, ChinaDepartment of Electrical Engineering, Sarhad University of Science and Information Technology, Peshawar 25000, PakistanGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Guangzhou 510632, ChinaTHz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Shenzhen 518060, ChinaTHz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Shenzhen 518060, ChinaTHz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Shenzhen 518060, ChinaTHz Technical Research Center of Shenzhen University, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Shenzhen 518060, ChinaWe report spectral splitting behaviors based on Fano resonances in a novel simple planar metasurface composed of gold nanobars and nanorings. Multiple plasmonic modes and sharp Fano effects are achieved in a broadband transmittance spectrum by exploiting the rotational symmetry of the metasurface. The transmission properties are effectively modified and tuned by modulating the structural parameters. The highest single side Q-factor and FoM which reaches 196 and 105 are observed at Fano resonances. Our proposed design is relatively simple and can be applied for various applications such as multi-wavelength highly sensitive plasmonic sensors, switching, and slow light devices.https://www.mdpi.com/2079-4991/7/11/397Q-factorfigure of meritfano resonancefinite element methodsensorsnanostructures
spellingShingle Naseer Muhammad
Adnan Daud Khan
Zi-Lan Deng
Karim Khan
Ashish Yadav
Qiang Liu
Zhengbiao Ouyang
Plasmonic Spectral Splitting in Ring/Rod Metasurface
Nanomaterials
Q-factor
figure of merit
fano resonance
finite element method
sensors
nanostructures
title Plasmonic Spectral Splitting in Ring/Rod Metasurface
title_full Plasmonic Spectral Splitting in Ring/Rod Metasurface
title_fullStr Plasmonic Spectral Splitting in Ring/Rod Metasurface
title_full_unstemmed Plasmonic Spectral Splitting in Ring/Rod Metasurface
title_short Plasmonic Spectral Splitting in Ring/Rod Metasurface
title_sort plasmonic spectral splitting in ring rod metasurface
topic Q-factor
figure of merit
fano resonance
finite element method
sensors
nanostructures
url https://www.mdpi.com/2079-4991/7/11/397
work_keys_str_mv AT naseermuhammad plasmonicspectralsplittinginringrodmetasurface
AT adnandaudkhan plasmonicspectralsplittinginringrodmetasurface
AT zilandeng plasmonicspectralsplittinginringrodmetasurface
AT karimkhan plasmonicspectralsplittinginringrodmetasurface
AT ashishyadav plasmonicspectralsplittinginringrodmetasurface
AT qiangliu plasmonicspectralsplittinginringrodmetasurface
AT zhengbiaoouyang plasmonicspectralsplittinginringrodmetasurface