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Title: Dispersion engineering of hyperbolic plasmons in bilayer 2D materials
Authors: Renuka, Maturi
Lin, Xiao
Wang, Zuojia
Shen, Lian
Zheng, Bin
Wang, Huaping
Chen, Hongsheng
Keywords: Science::Chemistry
Issue Date: 2018
Source: Renuka, M., Lin, X., Wang, Z., Shen, L., Zheng, B., Wang, H., & Chen, H. (2018). Dispersion engineering of hyperbolic plasmons in bilayer 2D materials. Optics letters, 43(23), 5737-5740. doi:10.1364/OL.43.005737
Journal: Optics letters
Abstract: 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.
ISSN: 0146-9592
DOI: 10.1364/OL.43.005737
Rights: © 2018 Optical Society of America. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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