Plasmonic Metalens‐Enhanced Single‐Mode Fibers: A Pathway Toward Remote Light Focusing

The focusing of light represents a key functionality, which can efficiently be achieved through wavefront shaping via metasurfaces (MSs). Remote light focusing requires interfacing these ultraflat photonic structures with optical fibers, which is hard to achieve due to fabrication limitations and ch...

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Autores principales:	Matthias Zeisberger, Henrik Schneidewind, Uwe Hübner, Torsten Wieduwilt, Malte Plidschun, Markus A. Schmidt
Formato:	article
Lenguaje:	EN
Publicado:	Wiley-VCH 2021
Materias:	metasurfaces optical fibers plasmonics Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/f74fd28a0df14b219eefccf68700f4f6
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id	oai:doaj.org-article:f74fd28a0df14b219eefccf68700f4f6
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spelling	oai:doaj.org-article:f74fd28a0df14b219eefccf68700f4f62021-11-04T09:00:27ZPlasmonic Metalens‐Enhanced Single‐Mode Fibers: A Pathway Toward Remote Light Focusing2699-929310.1002/adpr.202100100https://doaj.org/article/f74fd28a0df14b219eefccf68700f4f62021-11-01T00:00:00Zhttps://doi.org/10.1002/adpr.202100100https://doaj.org/toc/2699-9293The focusing of light represents a key functionality, which can efficiently be achieved through wavefront shaping via metasurfaces (MSs). Remote light focusing requires interfacing these ultraflat photonic structures with optical fibers, which is hard to achieve due to fabrication limitations and challenging beam management. Herein, the successful interfacing of a focusing plasmonic metalens with a regular single‐mode step‐index fiber through modified electron beam lithography is demonstrated. Specifically, a plasmonic MS consisting of nanoslots is realized on the end face of a modified single‐mode fiber via planarization and e‐beam lithography. A key feature of the device is the introduction of a coreless glass section in between the fiber and MS, which allows for free beam expansion up to 48 μm to fully exploit the numerical aperture (NA) of the metalens. In agreement with simulations, a clear focus with a NA of about 0.3 is found in the experiments, confirming the successful realization of a plasmonic metalens‐enhanced single‐mode fiber. Due to its unique properties, this concept finds applications in a multitude of areas, examples of which include optical trapping, generation of sophisticated beam profiles, and boosting light coupling efficiencies.Matthias ZeisbergerHenrik SchneidewindUwe HübnerTorsten WieduwiltMalte PlidschunMarkus A. SchmidtWiley-VCHarticlemetasurfacesoptical fibersplasmonicsApplied optics. PhotonicsTA1501-1820Optics. LightQC350-467ENAdvanced Photonics Research, Vol 2, Iss 11, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	metasurfaces optical fibers plasmonics Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
spellingShingle	metasurfaces optical fibers plasmonics Applied optics. Photonics TA1501-1820 Optics. Light QC350-467 Matthias Zeisberger Henrik Schneidewind Uwe Hübner Torsten Wieduwilt Malte Plidschun Markus A. Schmidt Plasmonic Metalens‐Enhanced Single‐Mode Fibers: A Pathway Toward Remote Light Focusing
description	The focusing of light represents a key functionality, which can efficiently be achieved through wavefront shaping via metasurfaces (MSs). Remote light focusing requires interfacing these ultraflat photonic structures with optical fibers, which is hard to achieve due to fabrication limitations and challenging beam management. Herein, the successful interfacing of a focusing plasmonic metalens with a regular single‐mode step‐index fiber through modified electron beam lithography is demonstrated. Specifically, a plasmonic MS consisting of nanoslots is realized on the end face of a modified single‐mode fiber via planarization and e‐beam lithography. A key feature of the device is the introduction of a coreless glass section in between the fiber and MS, which allows for free beam expansion up to 48 μm to fully exploit the numerical aperture (NA) of the metalens. In agreement with simulations, a clear focus with a NA of about 0.3 is found in the experiments, confirming the successful realization of a plasmonic metalens‐enhanced single‐mode fiber. Due to its unique properties, this concept finds applications in a multitude of areas, examples of which include optical trapping, generation of sophisticated beam profiles, and boosting light coupling efficiencies.
format	article
author	Matthias Zeisberger Henrik Schneidewind Uwe Hübner Torsten Wieduwilt Malte Plidschun Markus A. Schmidt
author_facet	Matthias Zeisberger Henrik Schneidewind Uwe Hübner Torsten Wieduwilt Malte Plidschun Markus A. Schmidt
author_sort	Matthias Zeisberger
title	Plasmonic Metalens‐Enhanced Single‐Mode Fibers: A Pathway Toward Remote Light Focusing
title_short	Plasmonic Metalens‐Enhanced Single‐Mode Fibers: A Pathway Toward Remote Light Focusing
title_full	Plasmonic Metalens‐Enhanced Single‐Mode Fibers: A Pathway Toward Remote Light Focusing
title_fullStr	Plasmonic Metalens‐Enhanced Single‐Mode Fibers: A Pathway Toward Remote Light Focusing
title_full_unstemmed	Plasmonic Metalens‐Enhanced Single‐Mode Fibers: A Pathway Toward Remote Light Focusing
title_sort	plasmonic metalens‐enhanced single‐mode fibers: a pathway toward remote light focusing
publisher	Wiley-VCH
publishDate	2021
url	https://doaj.org/article/f74fd28a0df14b219eefccf68700f4f6
work_keys_str_mv	AT matthiaszeisberger plasmonicmetalensenhancedsinglemodefibersapathwaytowardremotelightfocusing AT henrikschneidewind plasmonicmetalensenhancedsinglemodefibersapathwaytowardremotelightfocusing AT uwehubner plasmonicmetalensenhancedsinglemodefibersapathwaytowardremotelightfocusing AT torstenwieduwilt plasmonicmetalensenhancedsinglemodefibersapathwaytowardremotelightfocusing AT malteplidschun plasmonicmetalensenhancedsinglemodefibersapathwaytowardremotelightfocusing AT markusaschmidt plasmonicmetalensenhancedsinglemodefibersapathwaytowardremotelightfocusing
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Plasmonic Metalens‐Enhanced Single‐Mode Fibers: A Pathway Toward Remote Light Focusing

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