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Title: Broadband negative refraction of highly squeezed hyperbolic polaritons in 2D materials
Authors: Jiang, Jing
Lin, Xiao
Zhang, Baile
Keywords: Science::Physics
Issue Date: 2018
Source: Jiang, J., Lin, X., & Zhang, B. (2018). Broadband negative refraction of highly squeezed hyperbolic polaritons in 2D materials. Research, 2018, 2532819-. doi:10.1155/2018/2532819
Journal: Research
Abstract: Negative refraction of highly squeezed polaritons is a fundamental building block for nanophotonics, since it can enable many unique applications, such as deep-subwavelength imaging. However, the phenomenon of all-angle negative refraction of highly squeezed polaritons, such as graphene plasmons with their wavelength squeezed by a factor over 100 compared to free-space photons, was reported to work only within a narrow bandwidth (<1 THz). Demonstrating this phenomenon within a broad frequency range remains a challenge that is highly sought after due to its importance for the manipulation of light at the extreme nanoscale. Here we show the broadband all-angle negative refraction of highly squeezed hyperbolic polaritons in 2D materials in the infrared regime, by utilizing the naturally hyperbolic 2D materials or the hyperbolic metasurfaces based on nanostructured 2D materials (e.g., graphene). The working bandwidth can vary from several tens of THz to over a hundred of THz by tuning the chemical potential of 2D materials.
ISSN: 2639-5274
DOI: 10.1155/2018/2532819
Rights: © 2018 Jing Jiang et al. Exclusive Licensee Science and Technology Review Publishing House. Distributed under a Creative Commons Attribution License (CC BY 4.0).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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