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Title: Confined transverse electric phonon polaritons in hexagonal boron nitrides
Authors: Musa, Muhyiddeen Yahya
Renuka, Maturi
Lin, Xiao
Li, Rujiang
Wang, Huaping
Li, Erping
Zhang, Baile
Chen, Hongsheng
Keywords: DRNTU::Science::Physics
Transverse Electric
Hexagonal Boron Nitrides
Issue Date: 2018
Source: Musa, M. Y., Renuka, M., Lin, X., Li, R., Wang, H., Li, E., . . . Chen, H. (2018). Confined transverse electric phonon polaritons in hexagonal boron nitrides. 2D Materials, 5(1), 015018-. doi:10.1088/2053-1583/aa9643
Series/Report no.: 2D Materials
Abstract: We predict the existence of confined transverse electric (TE) phonon polaritons in an ultrathin hexagonal boron nitride (hBN) slab below hBN's second transverse optical frequency. The skin depth of TE phonon polaritons can be decreased to subwavelength scale by increasing the thickness of hBN to several nanometers. Due to the strong spatial confinement, these TE phonon polaritons, different from TE graphene plasmons, can stably exist even when the permittivities of the superstrate and substrate are largely different. These revealed advantages of TE phonon polaritons might lead to potential applications of hBN in the manipulation of TE waves, such as the design of novel waveguides, polarizers, and the exploration of negative refraction between TE polaritons.
DOI: 10.1088/2053-1583/aa9643
Rights: © 2018 IOP Publishing Ltd. All rights reserved. This is an author-created, un-copyedited version of an article accepted for publication in 2D Materials. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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