Modulation speed limits of a graphene-based modulator
Modulation speed limits of a graphene-based modulator
复制标题
基于石墨烯的调制器的调制速度限制
DOI:
10.1007/s11082-018-1324-4
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发表时间:
2018-02
影响因子:
3
通讯作者:
Liu HX
中科院分区:
文献类型:
--
作者:
Qu Sheng;Ma Congcong;Wang Shulong;Liu Hongxia;Dong Lu;Wang SL;Liu HX
Electro-optical modulators, working at near-infrared range are a key device in modern optical system. Modulation speed is an important parameter to evaluate the performance of an electro-optical modulator. However, the modulation speed which is controlled by contact resistance and quantum capacitance of a graphene-based modulator is difficult to calculate in previous numerical simulation. In this paper, we proposed a method based on a simple structure to calculate the modulation speed. The simulation results show that the modulation speed is approximate 1.2 GHz which is consistent with the experimental results. And the dependence of the modulation speed on the effective oxide thickness (EOT) and doping of graphene are investigated in our work. Meanwhile, we optimize the structure parameters of modulator to promote the modulation speed which can be increased to ~3.6 GHz. The proposed method to evaluate and optimize the modulation speed could have many applications potential for various graphene-based devices.
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影响因子:
3.3
作者:
Ji, Xiang;Zhang, Jinyu;Yu, Zhiping
通讯作者:
Yu, Zhiping
DOI:
--
发表时间:
2016
期刊:
--
影响因子:
--
作者:
K. Gürsan;Ece Eksin;M. Muti
通讯作者:
K. Gürsan;Ece Eksin;M. Muti
影响因子:
3.8
作者:
Miller, David A. B.
通讯作者:
Miller, David A. B.
DOI:
10.1117/12.902767
发表时间:
2011-11
期刊:
2011 Asia Communications and Photonics Conference and Exhibition (ACP)
影响因子:
--
作者:
G. Reed;D. Thomson;F. Gardes;N. Emerson;J. Fédéli
通讯作者:
G. Reed;D. Thomson;F. Gardes;N. Emerson;J. Fédéli
DOI:
10.1016/j.physe.2011.09.033
发表时间:
2012-04
影响因子:
3.3
作者:
S. Bhattacharya;S. Mahapatra
通讯作者:
S. Bhattacharya;S. Mahapatra