Confined transverse electric phonon polaritons in hexagonal boron nitrides

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 t...

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Main Authors: Musa, Muhyiddeen Yahya, Renuka, Maturi, Lin, Xiao, Li, Rujiang, Wang, Huaping, Li, Erping, Zhang, Baile, Chen, Hongsheng
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2019
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Online Access:https://hdl.handle.net/10356/106098
http://hdl.handle.net/10220/47901
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1060982023-02-28T19:45:06Z Confined transverse electric phonon polaritons in hexagonal boron nitrides Musa, Muhyiddeen Yahya Renuka, Maturi Lin, Xiao Li, Rujiang Wang, Huaping Li, Erping Zhang, Baile Chen, Hongsheng School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies (CDPT) DRNTU::Science::Physics Transverse Electric Hexagonal Boron Nitrides 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. MOE (Min. of Education, S’pore) Accepted version 2019-03-25T09:03:38Z 2019-12-06T22:04:31Z 2019-03-25T09:03:38Z 2019-12-06T22:04:31Z 2018 Journal Article 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 https://hdl.handle.net/10356/106098 http://hdl.handle.net/10220/47901 10.1088/2053-1583/aa9643 en 2D Materials © 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 https://doi.org/10.1088/2053-1583/aa9643 16 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Science::Physics
Transverse Electric
Hexagonal Boron Nitrides
spellingShingle DRNTU::Science::Physics
Transverse Electric
Hexagonal Boron Nitrides
Musa, Muhyiddeen Yahya
Renuka, Maturi
Lin, Xiao
Li, Rujiang
Wang, Huaping
Li, Erping
Zhang, Baile
Chen, Hongsheng
Confined transverse electric phonon polaritons in hexagonal boron nitrides
description 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.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Musa, Muhyiddeen Yahya
Renuka, Maturi
Lin, Xiao
Li, Rujiang
Wang, Huaping
Li, Erping
Zhang, Baile
Chen, Hongsheng
format Article
author Musa, Muhyiddeen Yahya
Renuka, Maturi
Lin, Xiao
Li, Rujiang
Wang, Huaping
Li, Erping
Zhang, Baile
Chen, Hongsheng
author_sort Musa, Muhyiddeen Yahya
title Confined transverse electric phonon polaritons in hexagonal boron nitrides
title_short Confined transverse electric phonon polaritons in hexagonal boron nitrides
title_full Confined transverse electric phonon polaritons in hexagonal boron nitrides
title_fullStr Confined transverse electric phonon polaritons in hexagonal boron nitrides
title_full_unstemmed Confined transverse electric phonon polaritons in hexagonal boron nitrides
title_sort confined transverse electric phonon polaritons in hexagonal boron nitrides
publishDate 2019
url https://hdl.handle.net/10356/106098
http://hdl.handle.net/10220/47901
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