Tunable multi-wavelength absorption in mid-IR region based on a hybrid patterned graphene-hBN structure

被引：32

作者：

Deng, Guangsheng ^{[1
,2
]}

Song, Xianglian ^{[2
]}

Dereshgi, Sina Abedini ^{[2
]}

Xu, Haiqing ^{[2
]}

Aydin, Koray ^{[2
]}

机构：

[1] Hefei Univ Technol, Acad Photoelect Technol, Hefei 230009, Anhui, Peoples R China

[2] Northwestern Univ, Dept Elect & Comp Engn, Evanston, IL 60208 USA

来源：

OPTICS EXPRESS | 2019年 / 27卷 / 16期

关键词：

HEXAGONAL BORON-NITRIDE; PLASMON-PHONON; POLARITON MODES; HETEROSTRUCTURE; ENHANCEMENT;

D O I：

10.1364/OE.27.023576

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we present a patterned graphene-hBN metamaterial structure and theoretically demonstrate the tunable multi-wavelength absorption within the hybrid structure. The simulation results show that the hybrid plasmon-phonon polariton modes originate from the coupling between plasmon polaritons in graphene and phonons in hBN, which are responsible for the triple-band absorption. By varying the Fermi level of graphene patterns, the absorption peaks can be tuned dynamically and continuously, and the surface plasmonphonon polariton modes in the proposed structure enable high absorption and wideband tunability. In addition, how different structural parameters affect the absorption spectra is discussed. This work provides us a new method for the control and enhancement of plasmonphonon polariton interactions. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：23576 / 23584

页数：9

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