Tunable multiple channeled phenomena in graphene-based plasmonic Bragg reflectors
Plasmonic Bragg reflectors based on graphene with multiple channeled phenomena are proposed and investigated numerically. As a mid-infrared waveguide, the monolayer graphene exhibits locally variable optical properties through the modulation of electric fields. The periodical change of the effective...
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doaj-5fc5b772fc7e48b4b5b29c1e946c72672020-11-24T22:44:34ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175055204055204-810.1063/1.4983476024705ADVTunable multiple channeled phenomena in graphene-based plasmonic Bragg reflectorsJicheng Wang0Hongyan Shao1Ci Song2Gaige Zheng3Zheng-Da Hu4Tian Sang5School of Science, Optoelectronic Engineering and Technology Research Center, Jiangnan University, Wuxi 214122, ChinaSchool of Science, Optoelectronic Engineering and Technology Research Center, Jiangnan University, Wuxi 214122, ChinaSchool of Science, Optoelectronic Engineering and Technology Research Center, Jiangnan University, Wuxi 214122, ChinaSchool of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, ChinaSchool of Science, Optoelectronic Engineering and Technology Research Center, Jiangnan University, Wuxi 214122, ChinaSchool of Science, Optoelectronic Engineering and Technology Research Center, Jiangnan University, Wuxi 214122, ChinaPlasmonic Bragg reflectors based on graphene with multiple channeled phenomena are proposed and investigated numerically. As a mid-infrared waveguide, the monolayer graphene exhibits locally variable optical properties through the modulation of electric fields. The periodical change of the effective refractive index (ERI) on graphene can be determined by applying external gate voltage. When we introduce an unmatched configuration or gate voltage, periodicity is disrupted, and a defect resonance mode is generated. At this point, the structure can be regard as a Fabry-Perot cavity. Accordingly, multiple-channel effects can be achieved by introducing cascaded multiple defects or including double symmetrical Fabry-Perot structures. This design shows applications potential in the graphene-based optoelectronic devices, particularly in the development of low-cost hyperspectral imaging sensors in mid-infrared region.http://dx.doi.org/10.1063/1.4983476 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jicheng Wang Hongyan Shao Ci Song Gaige Zheng Zheng-Da Hu Tian Sang |
spellingShingle |
Jicheng Wang Hongyan Shao Ci Song Gaige Zheng Zheng-Da Hu Tian Sang Tunable multiple channeled phenomena in graphene-based plasmonic Bragg reflectors AIP Advances |
author_facet |
Jicheng Wang Hongyan Shao Ci Song Gaige Zheng Zheng-Da Hu Tian Sang |
author_sort |
Jicheng Wang |
title |
Tunable multiple channeled phenomena in graphene-based plasmonic Bragg reflectors |
title_short |
Tunable multiple channeled phenomena in graphene-based plasmonic Bragg reflectors |
title_full |
Tunable multiple channeled phenomena in graphene-based plasmonic Bragg reflectors |
title_fullStr |
Tunable multiple channeled phenomena in graphene-based plasmonic Bragg reflectors |
title_full_unstemmed |
Tunable multiple channeled phenomena in graphene-based plasmonic Bragg reflectors |
title_sort |
tunable multiple channeled phenomena in graphene-based plasmonic bragg reflectors |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2017-05-01 |
description |
Plasmonic Bragg reflectors based on graphene with multiple channeled phenomena are proposed and investigated numerically. As a mid-infrared waveguide, the monolayer graphene exhibits locally variable optical properties through the modulation of electric fields. The periodical change of the effective refractive index (ERI) on graphene can be determined by applying external gate voltage. When we introduce an unmatched configuration or gate voltage, periodicity is disrupted, and a defect resonance mode is generated. At this point, the structure can be regard as a Fabry-Perot cavity. Accordingly, multiple-channel effects can be achieved by introducing cascaded multiple defects or including double symmetrical Fabry-Perot structures. This design shows applications potential in the graphene-based optoelectronic devices, particularly in the development of low-cost hyperspectral imaging sensors in mid-infrared region. |
url |
http://dx.doi.org/10.1063/1.4983476 |
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