A New Electro-Optical Switch Modulator Based on the Surface Plasmon Polaritons of Graphene in Mid-Infrared Band
In this paper, a new electro-optical switch modulator based on the surface plasmon polaritons of graphene is proposed. An air–graphene-substrate–dielectric structure is adopted in the modulator. In this structure, the graphene is considered as a film of metal whose thickness tend...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2018-12-01
|
Series: | Sensors |
Subjects: | |
Online Access: | http://www.mdpi.com/1424-8220/19/1/89 |
id |
doaj-9945005658fa4c8bac276d12f0ad80ed |
---|---|
record_format |
Article |
spelling |
doaj-9945005658fa4c8bac276d12f0ad80ed2020-11-25T00:41:46ZengMDPI AGSensors1424-82202018-12-011918910.3390/s19010089s19010089A New Electro-Optical Switch Modulator Based on the Surface Plasmon Polaritons of Graphene in Mid-Infrared BandMing Cai0Shulong Wang1Bo Gao2Yindi Wang3Tao Han4Hongxia Liu5Key Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaKey Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaKey Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaKey Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaKey Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaKey Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaIn this paper, a new electro-optical switch modulator based on the surface plasmon polaritons of graphene is proposed. An air–graphene-substrate–dielectric structure is adopted in the modulator. In this structure, the graphene is considered as a film of metal whose thickness tends to be infinitesimal. By changing the external voltage, the boundary conditions can be changed to decide whether the surface plasmon polariton waves can be excited in mid-infrared band. Because of this effect, the structure can be used as an electro–optical switch modulator, whose modulation depth is about 100% in theory. Finally, the 3 dB bandwidth (~34 GHz) and the energy loss (36.47 fJ/bit) of the electro–optical switch modulator are given, whose low energy loss is very suitable for engineering applications.http://www.mdpi.com/1424-8220/19/1/89surface plasmon polaritonsgrapheneelectro–optical switch modulator |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ming Cai Shulong Wang Bo Gao Yindi Wang Tao Han Hongxia Liu |
spellingShingle |
Ming Cai Shulong Wang Bo Gao Yindi Wang Tao Han Hongxia Liu A New Electro-Optical Switch Modulator Based on the Surface Plasmon Polaritons of Graphene in Mid-Infrared Band Sensors surface plasmon polaritons graphene electro–optical switch modulator |
author_facet |
Ming Cai Shulong Wang Bo Gao Yindi Wang Tao Han Hongxia Liu |
author_sort |
Ming Cai |
title |
A New Electro-Optical Switch Modulator Based on the Surface Plasmon Polaritons of Graphene in Mid-Infrared Band |
title_short |
A New Electro-Optical Switch Modulator Based on the Surface Plasmon Polaritons of Graphene in Mid-Infrared Band |
title_full |
A New Electro-Optical Switch Modulator Based on the Surface Plasmon Polaritons of Graphene in Mid-Infrared Band |
title_fullStr |
A New Electro-Optical Switch Modulator Based on the Surface Plasmon Polaritons of Graphene in Mid-Infrared Band |
title_full_unstemmed |
A New Electro-Optical Switch Modulator Based on the Surface Plasmon Polaritons of Graphene in Mid-Infrared Band |
title_sort |
new electro-optical switch modulator based on the surface plasmon polaritons of graphene in mid-infrared band |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2018-12-01 |
description |
In this paper, a new electro-optical switch modulator based on the surface plasmon polaritons of graphene is proposed. An air–graphene-substrate–dielectric structure is adopted in the modulator. In this structure, the graphene is considered as a film of metal whose thickness tends to be infinitesimal. By changing the external voltage, the boundary conditions can be changed to decide whether the surface plasmon polariton waves can be excited in mid-infrared band. Because of this effect, the structure can be used as an electro–optical switch modulator, whose modulation depth is about 100% in theory. Finally, the 3 dB bandwidth (~34 GHz) and the energy loss (36.47 fJ/bit) of the electro–optical switch modulator are given, whose low energy loss is very suitable for engineering applications. |
topic |
surface plasmon polaritons graphene electro–optical switch modulator |
url |
http://www.mdpi.com/1424-8220/19/1/89 |
work_keys_str_mv |
AT mingcai anewelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT shulongwang anewelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT bogao anewelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT yindiwang anewelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT taohan anewelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT hongxialiu anewelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT mingcai newelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT shulongwang newelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT bogao newelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT yindiwang newelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT taohan newelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband AT hongxialiu newelectroopticalswitchmodulatorbasedonthesurfaceplasmonpolaritonsofgrapheneinmidinfraredband |
_version_ |
1725285726525849600 |