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3D nanoprinted fiber-interfaced hollow-core waveguides for high-accuracy nanoparticle tracking analysis
Diana Pereira1,2, Torsten Wieduwilt1, Walter Hauswald1
1Leibniz Institute of Photonic Technology, Jena, Germany.
Light, Science & Applications
|May 15, 2025
Summary
Researchers developed a novel fiber-interfaced hollow-core waveguide using 3D nanoprinting for high-precision sensing. This alignment-free device enables nanoscale analysis, demonstrating potential in various scientific fields.
Area of Science:
- Integrated Photonics
- Nanophotonics
- Optical Sensing
Background:
- Flexible photonic integration is crucial for advanced sensing.
- Existing methods often lack alignment-free operation and full polarization control.
Purpose of the Study:
- To introduce a novel concept for interfacing square-core hollow-core waveguides with optical fibers.
- To demonstrate the practical application of this fiber-integrated device in nanoscale analysis.
Main Methods:
- Utilizing 3D nanoprinting for monolithic device fabrication.
- Employing nanoparticle-tracking analysis with gold nanospheres.
- Characterizing optical properties including mode excitation and polarization control.
Main Results:
- Achieved an alignment-free, fully fiber-integrated device.
- Demonstrated high-purity fundamental mode excitation and full polarization control.
- Successfully performed nanoparticle tracking and analysis within the hollow core waveguide.
Conclusions:
- The fiber-interfaced hollow-core waveguide offers a flexible, monolithic solution for enhanced light-matter interaction.
- This technology has significant potential for bioanalytics, quantum technologies, and life sciences.
- Paves the way for novel all-fiber devices for remote and flexible applications.
