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Title: All-angle negative refraction of highly squeezed plasmon and phonon polaritons in graphene–boron nitride heterostructures

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2];  [2];  [2];  [2];  [2];  [3];  [4];  [2];  [2]
  1. Zhejiang Univ., Hangzhou (China); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  3. Zhejiang Univ., Hangzhou (China)
  4. Nanyang Technological Univ. (Singapore)

A fundamental building block for nanophotonics is the ability to achieve negative refraction of polaritons, because this could enable the demonstration of many unique nanoscale applications such as deep-subwavelength imaging, superlens, and novel guiding. However, to achieve negative refraction of highly squeezed polaritons, such as plasmon polaritons in graphene and phonon polaritons in boron nitride (BN) with their wavelengths squeezed by a factor over 100, requires the ability to flip the sign of their group velocity at will, which is challenging. Here we reveal that the strong coupling between plasmon and phonon polaritons in graphene–BN heterostructures can be used to flip the sign of the group velocity of the resulting hybrid (plasmon–phonon–polariton) modes. We predict all-angle negative refraction between plasmon and phonon polaritons and, even more surprisingly, between hybrid graphene plasmons and between hybrid phonon polaritons. Graphene–BN heterostructures thus provide a versatile platform for the design of nanometasurfaces and nanoimaging elements.

Research Organization:
Krell Institute, Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-97ER25308
OSTI ID:
1465778
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Vol. 114, Issue 26; ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 129 works
Citation information provided by
Web of Science

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Cited By (20)

Observation of phonon-polaritons in thin flakes of hexagonal boron nitride on gold journal April 2018
Selective thermal radiation at longitudinal optical phonon energy under geometric condition of metal-semiconductor mesa stripe structures journal November 2018
Prestress tuning of negative refraction and wave channeling from flexural sources journal January 2019
Hyperbolic metamaterials: From dispersion manipulation to applications journal February 2020
Metasurfaces in terahertz waveband journal October 2017
Independently tunable dual-spectral electromagnetically induced transparency in a terahertz metal–graphene metamaterial journal September 2018
Tunable metasurface with controllable polarizations and reflection/transmission properties journal February 2020
Functional metasurfaces based on metallic and dielectric subwavelength slits and stripes array journal March 2018
Electrically tunable harmonics in time-modulated metasurfaces for wavefront engineering journal December 2018
The route to visible light photolithography using hyperlens journal March 2018
Low-Threshold Lasing and Coherent Perfect Absorption in Generalized P T -Symmetric Optical Structures journal August 2018
Magnetoplasmonic isolators based on graphene waveguide ring resonators journal July 2019
Hydrodynamic model approach to the formation of plasmonic wakes in graphene journal November 2017
Multiple acoustic surface plasmons in graphene/Cu(111) contacts journal January 2018
Midinfrared Plasmonic Valleytronics in Metagate-Tuned Graphene journal August 2018
Spontaneous Exciton Valley Coherence in Transition Metal Dichalcogenide Monolayers Interfaced with an Anisotropic Metasurface journal September 2018
Enhanced reflective dichroism from periodic graphene ribbons via total internal reflection journal January 2019
Electrically Tunable Harmonics in Time-modulated Metasurfaces for Wavefront Engineering text January 2018
Magnetic Hyperbolic Metasurface: Concept, Design, and Applications journal November 2018
Optical Magnetism in Planar Metamaterial Heterostructures preprint January 2016

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