Investigation of multi-resonant and anisotropic plasmonic resonances in the stacked graphene-black phosphorus bilayers

Published

Journal Article

© 2019 IOP Publishing Ltd. We theoretically investigate the anisotropic plasmonic resonances in the proposed infrared absorber, which consists of stacked graphene-black phosphorus (BP) bilayers with dual absorption peaks. By combining the advantages of graphene and BP, stacked graphene-black phosphorus bilayers exhibit high absorption rates at both peaks and strong anisotropy. The loss mechanism is revealed deeply with electric field distributions, while the near field coupling between graphene and BP is discussed detailedly. Furthermore, by altering the corresponding doping levels of graphene and BP, each of the absorption bands can be independently tuned effectively. The angular dependence for oblique incidence is illustrated by performing a series of simulations. Besides, polarization-sensitivity for stacked graphene-BP bilayers (GBPBs) is also presented. Thus, our approach provides a theoretical and systematic guide for designing a variety of multi-resonant graphene-BP-based spatial absorbers, which show potentials in the applications of sensors and reflective polarizers.

Full Text

Duke Authors

Cited Authors

  • Cai, Y; Li, S; Zhou, Y; Xu, KD; Wang, Y; Zuo, S; Joines, W

Published Date

  • January 1, 2020

Published In

Volume / Issue

  • 53 / 2

Electronic International Standard Serial Number (EISSN)

  • 1361-6463

International Standard Serial Number (ISSN)

  • 0022-3727

Digital Object Identifier (DOI)

  • 10.1088/1361-6463/ab4eea

Citation Source

  • Scopus