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Anomalous redshift of graphene absorption induced by plasmon-cavity competition
Yao, Wei1; Tang, Linlong2; Wang, Jun1; Jiang, Yadong1; Wei, Xingzhan2
2020-12-07
摘要Anomalous redshift of the absorption peak of graphene in the cavity system is numerically and experimentally demonstrated. It is observed that the absorption peak exhibits a redshift as the Fermi level of graphene increases, which is contrary to the ordinary trend of graphene plasmons. The influencing factors, including the electron mobility of graphene, the cavity length, and the ribbon width, are comprehensively analyzed. Such anomalous redshift can be explained by the competition between the graphene plasmon mode and the optical cavity mode. The study herein could be beneficial for the design of graphene-based plasmonic devices. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
DOI10.1364/OE.411453
发表期刊OPTICS EXPRESS
ISSN1094-4087
卷号28期号:25页码:38410-38418
通讯作者Wang, Jun(wjun@uestc.edu.cn) ; Wei, Xingzhan(weixingzhan@cigit.ac.cn)
收录类别SCI
WOS记录号WOS:000596707100104
语种英语