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 language | English (US) |
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Pages (from-to) | 23576-23584 |
Number of pages | 9 |
Journal | Optics Express |
Volume | 27 |
Issue number | 16 |
DOIs | |
State | Published - 2019 |
Funding
Office of Naval Research Young Investigator Program (ONR-YIP) Award (N00014-17-1-2425), United States-Israel Binational Science Foundation (BSF) (2016388) and China Scholarship Council (CSC).
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics