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Fibre-integrated phase-change metasurfaces with switchable group delay dispersion

Fibre-integrated phase-change metasurfaces with switchable group delay dispersion
Fibre-integrated phase-change metasurfaces with switchable group delay dispersion

Demonstration of a fiber-integrated non-volatile reconfigurable metasurface providing high-contrast group delay dispersion switching functionality is reported, which may be engineered to operate at wavelengths across the near-infrared (telecoms) band. Light-induced amorphous-crystalline phase switching in a chalcogenide (germanium antimony telluride) metasurface, only a fraction of a wavelength thick, fabricated on the end-facet of a single-mode optical fiber, enables intensity and phase modulation of the guided wave at metasurface designated bands. Such devices present a range of opportunities in fiberized remotely programmable phase/intensity multiplexing and dynamic dispersion compensation for emerging telecommunications and data storage/processing applications, including in photonic neural network and neuromorphic computing architectures.

chalcogenides, group delay dispersion, metamaterials, non-volatile, optical fibers, phase change, reconfigurable
2195-1071
Martins, Tiago
826b0b69-90f5-4d40-84b7-f661628dbf66
Cui, Yihao
25b5ddfa-03a2-4603-a93e-cfe4b81dd394
Gholipour, Behrad
c17bd62d-9df6-40e6-bc42-65272d97e559
Ou, Jun-Yu
3fb703e3-b222-46d2-b4ee-75f296d9d64d
Frazão, O.
d54dca12-baf0-44c6-b218-cc9c73fe7d76
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Martins, Tiago
826b0b69-90f5-4d40-84b7-f661628dbf66
Cui, Yihao
25b5ddfa-03a2-4603-a93e-cfe4b81dd394
Gholipour, Behrad
c17bd62d-9df6-40e6-bc42-65272d97e559
Ou, Jun-Yu
3fb703e3-b222-46d2-b4ee-75f296d9d64d
Frazão, O.
d54dca12-baf0-44c6-b218-cc9c73fe7d76
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5

Martins, Tiago, Cui, Yihao, Gholipour, Behrad, Ou, Jun-Yu, Frazão, O. and MacDonald, Kevin F. (2021) Fibre-integrated phase-change metasurfaces with switchable group delay dispersion. Advanced Optical Materials, 9 (21), [2100803]. (doi:10.1002/adom.202100803).

Record type: Article

Abstract

Demonstration of a fiber-integrated non-volatile reconfigurable metasurface providing high-contrast group delay dispersion switching functionality is reported, which may be engineered to operate at wavelengths across the near-infrared (telecoms) band. Light-induced amorphous-crystalline phase switching in a chalcogenide (germanium antimony telluride) metasurface, only a fraction of a wavelength thick, fabricated on the end-facet of a single-mode optical fiber, enables intensity and phase modulation of the guided wave at metasurface designated bands. Such devices present a range of opportunities in fiberized remotely programmable phase/intensity multiplexing and dynamic dispersion compensation for emerging telecommunications and data storage/processing applications, including in photonic neural network and neuromorphic computing architectures.

Text
phase change metasurfaces with switchable group delay dispersion - submitted manuscript - final - Accepted Manuscript
Restricted to Repository staff only until 17 August 2022.
Available under License Creative Commons Attribution.
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More information

Accepted/In Press date: 13 July 2021
e-pub ahead of print date: 17 August 2021
Additional Information: Funding Information: T.M. and Y.C. contributed equally to this work. The authors would like to thank Prof. Nikolay Zheludev for valuable discussions and input. This work was supported by the Canadian Natural Science and Engineering Research Council (NSERC), Alberta Innovates [No. 202102642], Engineering and Physical Sciences Research Council, UK [grant number EP/N00762X/1], and the Singapore Ministry of Education [MOE2016‐T3‐1‐006]. T.M. was partially supported by Fundação para a Ciência e Tecnologia under the grant PD/BD/135 008/2017. Y.C. was supported by the Canadian NSERC and Alberta Innovates [NSERC RGPIN‐2019‐03952]. Publisher Copyright: © 2021 Wiley-VCH GmbH Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
Keywords: chalcogenides, group delay dispersion, metamaterials, non-volatile, optical fibers, phase change, reconfigurable

Identifiers

Local EPrints ID: 450977
URI: http://eprints.soton.ac.uk/id/eprint/450977
ISSN: 2195-1071
PURE UUID: e1027b18-349f-4849-a3ea-db26b25098b3
ORCID for Jun-Yu Ou: ORCID iD orcid.org/0000-0001-8028-6130
ORCID for Kevin F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976

Catalogue record

Date deposited: 31 Aug 2021 16:30
Last modified: 26 Nov 2021 02:57

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Contributors

Author: Tiago Martins
Author: Yihao Cui
Author: Behrad Gholipour
Author: Jun-Yu Ou ORCID iD
Author: O. Frazão

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