Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/86329
Title: All-angle negative refraction of highly squeezed plasmon and phonon polaritons in graphene–boron nitride heterostructures
Authors: Lin, Xiao
Yang, Yi
Rivera, Nicholas
López, Josué J.
Shen, Yichen
Kaminer, Ido
Chen, Hongsheng
Zhang, Baile
Joannopoulos, John D.
Soljačić, Marin
Keywords: Negative Refraction
Plasmon Polariton
Issue Date: 2017
Source: Lin, X., Yang, Y., Rivera, N., López, J. J., Shen, Y., Kaminer, I., et al. All-angle negative refraction of highly squeezed plasmon and phonon polaritons in graphene–boron nitride heterostructures. Proceedings of the National Academy of Sciences, 114(26), 6717-6721.
Series/Report no.: Proceedings of the National Academy of Sciences of the United States of America
Abstract: 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.
URI: https://hdl.handle.net/10356/86329
http://hdl.handle.net/10220/44000
ISSN: 1091-6490
DOI: 10.1073/pnas.1701830114
Rights: © 2017 The Author(s). This is the author created version of a work that has been peer reviewed and accepted for publication in Proceedings of the National Academy of Sciences of the United States of America, published by National Academy of Sciences on behalf of The Author(s). It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document.  The published version is available at: [http://dx.doi.org/10.1073/pnas.1701830114].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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