Graphene-based THz modulator analyzed by equivalent circuit model

Binggang Xiao; Jing Chen; Zhiyi Xie; Sanshui  Xiao

doi:10.1049/mnl.2016.0107

Graphene-based THz modulator analyzed by equivalent circuit model

Binggang Xiao, Jing Chen, Zhiyi Xie, Sanshui Xiao

China Jiliang University

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Abstract

A terahertz (THz) modulator based on graphene is proposed and analysed by use of equivalent transmission line of a homogeneous mediumand the local anisotropic model of the graphene conductivity. The result calculated by the equivalent circuit is consistent with that obtained byFresnel transfer matrices. For the modulator proposed here, when the frequency of carrier wave is 0.6 THz, the theoretical analysis indicatesthat the modulation bandwidth is 55.5 kHz and the modulation depth is 81.3% for voltage change from 0 to 50 V

Original language	English
Journal	Micro & Nano Letters
Volume	11
Issue number	8
Pages (from-to)	439–442
ISSN	1750-0443
DOIs	https://doi.org/10.1049/mnl.2016.0107
Publication status	Published - 2016

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title = "Graphene-based THz modulator analyzed by equivalent circuit model",

abstract = "A terahertz (THz) modulator based on graphene is proposed and analysed by use of equivalent transmission line of a homogeneous mediumand the local anisotropic model of the graphene conductivity. The result calculated by the equivalent circuit is consistent with that obtained byFresnel transfer matrices. For the modulator proposed here, when the frequency of carrier wave is 0.6 THz, the theoretical analysis indicatesthat the modulation bandwidth is 55.5 kHz and the modulation depth is 81.3% for voltage change from 0 to 50 V",

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AU - Xiao, Binggang

AU - Chen, Jing

AU - Xie, Zhiyi

AU - Xiao, Sanshui

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Y1 - 2016

N2 - A terahertz (THz) modulator based on graphene is proposed and analysed by use of equivalent transmission line of a homogeneous mediumand the local anisotropic model of the graphene conductivity. The result calculated by the equivalent circuit is consistent with that obtained byFresnel transfer matrices. For the modulator proposed here, when the frequency of carrier wave is 0.6 THz, the theoretical analysis indicatesthat the modulation bandwidth is 55.5 kHz and the modulation depth is 81.3% for voltage change from 0 to 50 V

AB - A terahertz (THz) modulator based on graphene is proposed and analysed by use of equivalent transmission line of a homogeneous mediumand the local anisotropic model of the graphene conductivity. The result calculated by the equivalent circuit is consistent with that obtained byFresnel transfer matrices. For the modulator proposed here, when the frequency of carrier wave is 0.6 THz, the theoretical analysis indicatesthat the modulation bandwidth is 55.5 kHz and the modulation depth is 81.3% for voltage change from 0 to 50 V

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DO - 10.1049/mnl.2016.0107

M3 - Journal article

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SP - 439

EP - 442

JO - Micro & Nano Letters

JF - Micro & Nano Letters

IS - 8

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Graphene-based THz modulator analyzed by equivalent circuit model

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