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Ultrahigh numerical aperture meta-fibre for flexible optical trapping

Strong focusing on diffraction-limited spots is essential for many photonic applications and is particularly relevant for optical trapping; however, all currently used approaches fail to simultaneously provide flexible transportation of light, straightforward implementation, compatibility with waveg...

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Autores principales: Plidschun, Malte, Ren, Haoran, Kim, Jisoo, Förster, Ronny, Maier, Stefan A., Schmidt, Markus A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7960731/
https://www.ncbi.nlm.nih.gov/pubmed/33723210
http://dx.doi.org/10.1038/s41377-021-00491-z
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author Plidschun, Malte
Ren, Haoran
Kim, Jisoo
Förster, Ronny
Maier, Stefan A.
Schmidt, Markus A.
author_facet Plidschun, Malte
Ren, Haoran
Kim, Jisoo
Förster, Ronny
Maier, Stefan A.
Schmidt, Markus A.
author_sort Plidschun, Malte
collection PubMed
description Strong focusing on diffraction-limited spots is essential for many photonic applications and is particularly relevant for optical trapping; however, all currently used approaches fail to simultaneously provide flexible transportation of light, straightforward implementation, compatibility with waveguide circuitry, and strong focusing. Here, we demonstrate the design and 3D nanoprinting of an ultrahigh numerical aperture meta-fibre for highly flexible optical trapping. Taking into account the peculiarities of the fibre environment, we implemented an ultrathin meta-lens on the facet of a modified single-mode optical fibre via direct laser writing, leading to a diffraction-limited focal spot with a record-high numerical aperture of up to NA ≈ 0.9. The unique capabilities of this flexible, cost-effective, bio- and fibre-circuitry-compatible meta-fibre device were demonstrated by optically trapping microbeads and bacteria for the first time with only one single-mode fibre in combination with diffractive optics. Our study highlights the relevance of the unexplored but exciting field of meta-fibre optics to a multitude of fields, such as bioanalytics, quantum technology and life sciences.
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spelling pubmed-79607312021-03-28 Ultrahigh numerical aperture meta-fibre for flexible optical trapping Plidschun, Malte Ren, Haoran Kim, Jisoo Förster, Ronny Maier, Stefan A. Schmidt, Markus A. Light Sci Appl Article Strong focusing on diffraction-limited spots is essential for many photonic applications and is particularly relevant for optical trapping; however, all currently used approaches fail to simultaneously provide flexible transportation of light, straightforward implementation, compatibility with waveguide circuitry, and strong focusing. Here, we demonstrate the design and 3D nanoprinting of an ultrahigh numerical aperture meta-fibre for highly flexible optical trapping. Taking into account the peculiarities of the fibre environment, we implemented an ultrathin meta-lens on the facet of a modified single-mode optical fibre via direct laser writing, leading to a diffraction-limited focal spot with a record-high numerical aperture of up to NA ≈ 0.9. The unique capabilities of this flexible, cost-effective, bio- and fibre-circuitry-compatible meta-fibre device were demonstrated by optically trapping microbeads and bacteria for the first time with only one single-mode fibre in combination with diffractive optics. Our study highlights the relevance of the unexplored but exciting field of meta-fibre optics to a multitude of fields, such as bioanalytics, quantum technology and life sciences. Nature Publishing Group UK 2021-03-15 /pmc/articles/PMC7960731/ /pubmed/33723210 http://dx.doi.org/10.1038/s41377-021-00491-z Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Plidschun, Malte
Ren, Haoran
Kim, Jisoo
Förster, Ronny
Maier, Stefan A.
Schmidt, Markus A.
Ultrahigh numerical aperture meta-fibre for flexible optical trapping
title Ultrahigh numerical aperture meta-fibre for flexible optical trapping
title_full Ultrahigh numerical aperture meta-fibre for flexible optical trapping
title_fullStr Ultrahigh numerical aperture meta-fibre for flexible optical trapping
title_full_unstemmed Ultrahigh numerical aperture meta-fibre for flexible optical trapping
title_short Ultrahigh numerical aperture meta-fibre for flexible optical trapping
title_sort ultrahigh numerical aperture meta-fibre for flexible optical trapping
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7960731/
https://www.ncbi.nlm.nih.gov/pubmed/33723210
http://dx.doi.org/10.1038/s41377-021-00491-z
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