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Dynamical manipulation of a dual-polarization plasmon-induced transparency employing an anisotropic graphene-black phosphorus heterostructure
Luo, Peng1,2; Wei, Wei1; Lan, Guilian1,2; Wei, Xingzhan2; Meng, Liya1; Liu, Yan3; Yi, Juemin4,5; Han, Genquan3
2021-09-13
摘要Dynamical tunable plasmon-induced transparency (PIT) possesses the unique characteristics of controlling light propagation states, which promises numerous potential applications in efficient optical signal processing chips and nonlinear optical devices. However, previously reported configurations are sensitive to polarization and can merely operate under specific single polarization. In this work we propose an anisotropic PIT metamaterial device based on a graphene-black phosphorus (G-BP) heterostructure to realize a dual-polarization tunable PIT effect. The destructive interference coupling between the bright mode and dark modes under the orthogonal polarization state pronounced anisotropic PIT phenomenon. The coupling strength of the PIT system can be modulated by dynamically manipulating the Fermi energy of the graphene via the external electric field voltage. Moreover, the three-level plasmonic system and the coupled oscillator model are employed to explain the underlying mechanism of the PIT effect, and the analytical results show good consistency with the numerical calculations. Compared to the single-polarization PIT devices, the proposed device offers additional degrees of freedom in realizing universal tunable functionalities, which could significantly promote the development of next-generation integrated optical processing chips, optical modulation and slow light devices. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
DOI10.1364/OE.435998
发表期刊OPTICS EXPRESS
ISSN1094-4087
卷号29期号:19页码:29690-29703
通讯作者Wei, Wei(wwei@cqu.edu.cn)
收录类别SCI
WOS记录号WOS:000695619200010
语种英语