Tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators

A modulation principle and method, the gate-voltage-controlled mode-guiding switching/mode-cutoff mechanism, is proposed and numerically investigated to achieve the modulation/attenuation function. The propagating attenuation of the graphene 2D waveguide as a function of the Fermi level of the cladd...

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Main Authors: Huang, Xu Guang, Lao, Jieer, Tao, Jin, Wang, Qi Jie
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2014
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Online Access:https://hdl.handle.net/10356/105201
http://hdl.handle.net/10220/20464
http://dx.doi.org/10.1002/lpor.201300199
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1052012019-12-06T21:47:27Z Tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators Huang, Xu Guang Lao, Jieer Tao, Jin Wang, Qi Jie School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences DRNTU::Engineering::Electrical and electronic engineering A modulation principle and method, the gate-voltage-controlled mode-guiding switching/mode-cutoff mechanism, is proposed and numerically investigated to achieve the modulation/attenuation function. The propagating attenuation of the graphene 2D waveguide as a function of the Fermi level of the cladding is analyzed. Different modes with low or high attenuations in a wide attenuation range have been observed. The proposed structure avoids the patterning on graphene or substrate, thus diminishing the energy scattering on the edges. It also has the advantages of large modulation depth/attenuation range, wide bandwidth, and sub-micrometer chip-length with a nanoscale lateral section, which is promising for future graphene-based integrated photonic devices. 2014-09-08T08:28:31Z 2019-12-06T21:47:27Z 2014-09-08T08:28:31Z 2019-12-06T21:47:27Z 2014 2014 Journal Article Lao, J., Tao, J., Wang, Q. J., & Huang, X. G. (2014). Tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators. Laser & photonics reviews, 8(4), 569-574. 1863-8880 https://hdl.handle.net/10356/105201 http://hdl.handle.net/10220/20464 http://dx.doi.org/10.1002/lpor.201300199 en Laser & photonics reviews © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering
spellingShingle DRNTU::Engineering::Electrical and electronic engineering
Huang, Xu Guang
Lao, Jieer
Tao, Jin
Wang, Qi Jie
Tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators
description A modulation principle and method, the gate-voltage-controlled mode-guiding switching/mode-cutoff mechanism, is proposed and numerically investigated to achieve the modulation/attenuation function. The propagating attenuation of the graphene 2D waveguide as a function of the Fermi level of the cladding is analyzed. Different modes with low or high attenuations in a wide attenuation range have been observed. The proposed structure avoids the patterning on graphene or substrate, thus diminishing the energy scattering on the edges. It also has the advantages of large modulation depth/attenuation range, wide bandwidth, and sub-micrometer chip-length with a nanoscale lateral section, which is promising for future graphene-based integrated photonic devices.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Huang, Xu Guang
Lao, Jieer
Tao, Jin
Wang, Qi Jie
format Article
author Huang, Xu Guang
Lao, Jieer
Tao, Jin
Wang, Qi Jie
author_sort Huang, Xu Guang
title Tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators
title_short Tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators
title_full Tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators
title_fullStr Tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators
title_full_unstemmed Tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators
title_sort tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators
publishDate 2014
url https://hdl.handle.net/10356/105201
http://hdl.handle.net/10220/20464
http://dx.doi.org/10.1002/lpor.201300199
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