Anisotropic localized surface plasmons in borophene

Sina Abedini Dereshgi*, Zizhuo Liu, Koray Aydin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We present a theoretical study on the plasmonic response of borophene, a monolayer 2D material that is predicted to exhibit metallic response and anisotropic plasmonic behavior in visible wavelengths. We investigate plasmonic properties of borophene thin films as well as borophene nanoribbons and nanopatches where polarization-sensitive absorption values in the order of 50% is obtained with monolayer borophene. It is demonstrated that by adding a metal layer, this absorption can be enhanced to 100%. We also examine giant dichroism in monolayer borophene which can be tuned passively (patterning) and actively (electrostatic gating) and our simulations yield 20% reflected light with significant polarization rotation. These findings reveal the potential of borophene in the manipulation of phase, amplitude and polarization of light at the extreme subwavelength scales.

Original languageEnglish (US)
Pages (from-to)16725-16739
Number of pages15
JournalOptics Express
Volume28
Issue number11
DOIs
StatePublished - May 25 2020

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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