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

Guangsheng Deng, Xianglian Song, Sina Abedini Dereshgi, Haiqing Xu, Koray Aydin

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

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 plasmon-phonon 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 plasmon-phonon polariton interactions.

Original languageEnglish (US)
Pages (from-to)23576-23584
Number of pages9
JournalOptics Express
Volume27
Issue number16
DOIs
StatePublished - Jan 1 2019

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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