Launching and manipulation of higher-order in-plane hyperbolic phonon polaritons in low-dimensional heterostructures
Launching and manipulation of higher-order in-plane hyperbolic phonon polaritons in low-dimensional heterostructures
Hyperbolic phonon polaritons (HPhPs) are stimulated by coupling infrared (IR) photons with the polar lattice vibrations. Such HPhPs offer low-loss, highly confined light propagation at subwavelength scales with out-of-plane or in-plane hyperbolic wavefronts. For HPhPs, while a hyperbolic dispersion implies multiple propagating modes with a distribution of wavevectors at a given frequency, so far it has been challenging to experimentally launch and probe the higher-order modes that offer stronger wavelength compression, especially for in-plane HPhPs. In this work, we report the experimental observation of higher-order in-plane HPhP modes stimulated on a 3C-SiC nanowire (NW)/α-MoO3 heterostructure where leveraging both the low-dimensionality and low-loss nature of the polar NWs, higher-order HPhPs modes within two-dimensional α-MoO3 crystal are launched by the one-dimensional 3C-SiC NW. We further study the launching mechanism and determine the requirements for efficiently launching of such higher-order modes. In addition, by altering the geometric orientation between the 3C-SiC NW and α-MoO3 crystal, we demonstrate the manipulation of higher-order HPhP dispersions as a method of tuning. This work illustrates an extremely anisotropic low dimensional heterostructure platform to confine and configure electromagnetic waves at the deep-subwavelength scales for a range of infrared applications including sensing, nano-imaging, and on-chip photonics.
Mid-Infrared, Nanophotonics, Phonon Polariton, hyperbolic, sic
Lu, Guanyu
c14b34b7-7e94-4a2d-903a-25112b2007f8
Pan, Zhiliang
e062964f-8526-4784-bca0-11a80e1bd0e3
Gubbin, Christopher R.
09b75073-7a9a-4443-9a84-1458ec2535e9
Kowalski, Ryan A.
ead9932a-1612-4f75-826c-b1e645ff7420
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473
Li, Deyu
d83a66d2-6ed9-47c8-be75-93728a318fcf
Caldwell, Joshua D.
a1eb4205-8a65-48cb-9e7b-4213d744970e
1 June 2023
Lu, Guanyu
c14b34b7-7e94-4a2d-903a-25112b2007f8
Pan, Zhiliang
e062964f-8526-4784-bca0-11a80e1bd0e3
Gubbin, Christopher R.
09b75073-7a9a-4443-9a84-1458ec2535e9
Kowalski, Ryan A.
ead9932a-1612-4f75-826c-b1e645ff7420
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473
Li, Deyu
d83a66d2-6ed9-47c8-be75-93728a318fcf
Caldwell, Joshua D.
a1eb4205-8a65-48cb-9e7b-4213d744970e
Lu, Guanyu, Pan, Zhiliang, Gubbin, Christopher R., Kowalski, Ryan A., De Liberato, Simone, Li, Deyu and Caldwell, Joshua D.
(2023)
Launching and manipulation of higher-order in-plane hyperbolic phonon polaritons in low-dimensional heterostructures.
Advanced Materials, 35 (22), [2300301].
(doi:10.1002/adma.202300301).
Abstract
Hyperbolic phonon polaritons (HPhPs) are stimulated by coupling infrared (IR) photons with the polar lattice vibrations. Such HPhPs offer low-loss, highly confined light propagation at subwavelength scales with out-of-plane or in-plane hyperbolic wavefronts. For HPhPs, while a hyperbolic dispersion implies multiple propagating modes with a distribution of wavevectors at a given frequency, so far it has been challenging to experimentally launch and probe the higher-order modes that offer stronger wavelength compression, especially for in-plane HPhPs. In this work, we report the experimental observation of higher-order in-plane HPhP modes stimulated on a 3C-SiC nanowire (NW)/α-MoO3 heterostructure where leveraging both the low-dimensionality and low-loss nature of the polar NWs, higher-order HPhPs modes within two-dimensional α-MoO3 crystal are launched by the one-dimensional 3C-SiC NW. We further study the launching mechanism and determine the requirements for efficiently launching of such higher-order modes. In addition, by altering the geometric orientation between the 3C-SiC NW and α-MoO3 crystal, we demonstrate the manipulation of higher-order HPhP dispersions as a method of tuning. This work illustrates an extremely anisotropic low dimensional heterostructure platform to confine and configure electromagnetic waves at the deep-subwavelength scales for a range of infrared applications including sensing, nano-imaging, and on-chip photonics.
Text
Manuscript
- Accepted Manuscript
Text
Supplementary Information
Restricted to Repository staff only
Request a copy
More information
e-pub ahead of print date: 9 March 2023
Published date: 1 June 2023
Additional Information:
Funding Information:
J.D.C. gratefully acknowledge support for this work by the National Science Foundation under grant number NSF DMR-2128240 and Office of Naval Research grant N00014-22-12035. G.L. was supported through Army Research Office Small Business Technology Transfer (W911NF-22-P-0029). S.D.L. was supported by a Royal Society Research fellowship and the Philip Leverhulme prize. The authors acknowledge support from the Royal Society Grant No. RGF\EA\181001 and the Leverhulme Trust Grant No. RPG-2019-174. This work was supported by a NASA Space Technology Graduate Research Opportunities Award (R.A.K.). Z.P. and D.L. acknowledge support for this work by the National Science Foundation under grant number CBET-2114278.
Funding Information:
J.D.C. gratefully acknowledge support for this work by the National Science Foundation under grant number NSF DMR‐2128240 and Office of Naval Research grant N00014‐22‐12035. G.L. was supported through Army Research Office Small Business Technology Transfer (W911NF‐22‐P‐0029). S.D.L. was supported by a Royal Society Research fellowship and the Philip Leverhulme prize. The authors acknowledge support from the Royal Society Grant No. RGF\EA\181001 and the Leverhulme Trust Grant No. RPG‐2019‐174. This work was supported by a NASA Space Technology Graduate Research Opportunities Award (R.A.K.). Z.P. and D.L. acknowledge support for this work by the National Science Foundation under grant number CBET‐2114278.
Publisher Copyright:
© 2023 Wiley-VCH GmbH.
Keywords:
Mid-Infrared, Nanophotonics, Phonon Polariton, hyperbolic, sic
Identifiers
Local EPrints ID: 476917
URI: http://eprints.soton.ac.uk/id/eprint/476917
ISSN: 0935-9648
PURE UUID: 401f4106-8f3f-410d-8128-5039f3808cda
Catalogue record
Date deposited: 19 May 2023 16:35
Last modified: 17 Mar 2024 07:43
Export record
Altmetrics
Contributors
Author:
Guanyu Lu
Author:
Zhiliang Pan
Author:
Christopher R. Gubbin
Author:
Ryan A. Kowalski
Author:
Deyu Li
Author:
Joshua D. Caldwell
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics