3D nanoprinted fiber-interfaced hollow-core waveguides for high-accuracy nanoparticle tracking analysis

Diana Pereira; Torsten Wieduwilt; Walter Hauswald; Matthias Zeisberger; Marta S. Ferreira; Markus A. Schmidt

doi:10.1038/s41377-025-01827-9

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3D nanoprinted fiber-interfaced hollow-core waveguides for high-accuracy nanoparticle tracking analysis

Original Articles

- 3D nanoprinted fiber-interfaced hollow-core waveguides for high-accuracy nanoparticle tracking analysis
- Light: Science & Applications Vol. 14, Issue 7, Pages: 2019-2029(2025)
- Affiliations：
  
  1.Leibniz Institute of Photonic Technology, Jena, Germany
  2.i3N & Physics Department, University of Aveiro, Campus de Santiago, Aveiro, Portugal
  3.Abbe Center of Photonics and Faculty of Physics, Friedrich Schiller University Jena, Jena, Germany
  4.Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Jena, Germany
- Author bio：
  
  Markus A. Schmidt (markus-alexander.schmidt@uni-jena.de)
- Funds：
- DOI：10.1038/s41377-025-01827-9
  CLC：
- Received：22 August 2024，
  
  Revised：18 February 2025，
  
  Accepted：13 March 2025，
  
  Published Online：15 May 2025，
  
  Published：31 July 2025
- Accepted：
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Pereira, D. et al. 3D nanoprinted fiber-interfaced hollow-core waveguides for high-accuracy nanoparticle tracking analysis. Light: Science & Applications, 14, 2019-2029 (2025).
DOI：

Pereira, D. et al. 3D nanoprinted fiber-interfaced hollow-core waveguides for high-accuracy nanoparticle tracking analysis. Light: Science & Applications, 14, 2019-2029 (2025). DOI： 10.1038/s41377-025-01827-9.

摘要

Abstract

The integration of functional components into flexible photonic environments is a critical area of research in integrated photonics and is essential for high-precision sensing. This work presents a novel concept of interfacing square-core hollow-core waveguides with commercially available optical fibers using 3D nanoprinting

and demonstrates its practical relevance through a nanoscience-based characterization technique. In detail

this innovative concept results in a monolithic

fully fiber-integrated device with key advantages such as alignment-free operation

high-purity fundamental mode excitation

full polarization control

and a unique handling flexibility. For the first time

the application potential of a fiber-interfaced waveguide in nanoscale analysis is demonstrated by performing nanoparticle-tracking-analysis experiments. These experiments involve the tracking and analysis of individual gold nanospheres diffusing in the hollow core waveguide

enabled by nearly aberration-free imaging

extended observation times

and homogeneous light-line illumination. The study comprehensively covers design strategy

experimental implementation

key principles

optical characterization

and practical applications. The fiber-interfaced hollow-core waveguide concept offers significant potential for applications in bioanalytics

environmental sciences

quantum technologies

optical manipulation

and life sciences. It also paves the way for the development of novel all-fiber devices that exploit enhanced light-matter interaction in a monolithic form suitable for flexible and remote applications.

关键词

Keywords

references

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