Dispersion engineering of hyperbolic plasmons in bilayer 2D materials

Dispersion engineering of hyperbolic plasmons in bilayer 2D materials

Recent progress on anisotropic 2D materials brings new technologies for directional guidance of hyperbolic plasmons. Here, we investigate the plasmonic modes in twisted bilayer 2D materials (e.g., black phosphorous). Calculated dispersion curves show that two hyperbolas split as the twisted angle in...

Full description

Saved in:
Bibliographic Details
Main Authors: Renuka, Maturi, Lin, Xiao, Wang, Zuojia, Shen, Lian, Zheng, Bin, Wang, Huaping, Chen, Hongsheng
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
Subjects:
Science::Chemistry
Hyperbolic
Topological Transition
Online Access:https://hdl.handle.net/10356/141871
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
Description
Summary:Recent progress on anisotropic 2D materials brings new technologies for directional guidance of hyperbolic plasmons. Here, we investigate the plasmonic modes in twisted bilayer 2D materials (e.g., black phosphorous). Calculated dispersion curves show that two hyperbolas split as the twisted angle increases. The topological transition from closed ellipses to open hyperbolas is achieved by varying the frequency, indicating switching between highly directional and omnidirectional plasmons. These findings will provide potential applications of anisotropic 2D materials in the design of tunable field effect transistors and waveguides.

Similar Items