Tunable plasmon-phonon polaritons in anisotropic 2D materials on hexagonal boron nitride-Reference-Cited by-同舟云学术

Tunable plasmon-phonon polaritons in anisotropic 2D materials on hexagonal boron nitride

Published:2020-06-01 Issue:12 Volume:9 Page:3909-3920
ISSN:2192-8614
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Hajian Hodjat¹^ORCID,Rukhlenko Ivan D.²³^ORCID,Hanson George W.⁴^ORCID,Low Tony⁵^ORCID,Butun Bayram¹,Ozbay Ekmel¹⁶⁷

Affiliation:

1. NANOTAM-Nanotechnology Research Center , Bilkent University , 06800 , Ankara , Turkey

2. Institute of Photonics and Optical Science (IPOS), School of Physics , The University of Sydney , Camperdown , 2006 , NSW , Australia

3. Information Optical Technologies Centre , ITMO University , Saint Petersburg , 197101 , Russia

4. Department of Electrical Engineering , University of Wisconsin , 3200 North Cramer Street , Milwaukee , WI , 53211 , USA

5. Department of Electrical and Computer Engineering , University of Minnesota , Minneapolis , MN , 55455 , USA

6. Department of Electrical and Electronics Engineering , Bilkent University , 06800 , Ankara , Turkey

7. Department of Physics and UNAM-Institute of Materials Science and Nanotechnology , Bilkent University , 06800 , Ankara , Turkey

Abstract

Abstract Mid-infrared (MIR) plasmon-phonon features of heterostructures composing of a plasmonic anisotropic two-dimensional material (A2DM) on a hexagonal boron nitride (hBN) film are analyzed. We derive the exact dispersion relations of plasmon-phonons supported by the heterostructures and demonstrate the possibility of topological transitions of these modes within the second Reststrahlen band of hBN. The topological transitions lead to enhanced local density of plasmon-phonon states, which intensifies the spontaneous emission rate, if the thickness of the hBN layer is appropriately chosen. We also investigate a lateral junction formed by A2DM/hBN and A2DM, demonstrating that one can realize asymmetric guiding, beaming, and unidirectionality of the hybrid guided modes. Our findings demonstrate potential capabilities of the A2DM/hBN heterostructures for active tunable light–matter interactions and asymmetric in-plane polariton nanophotonics in the MIR range.

Funder

DPT-HAMIT and TUBITAK

Russian Science Foundation

Turkish Academy of Sciences

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2020-0080/pdf

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