Physikalisches Kolloquium: Prof. Dr. Markus Schmidt – Bridging Nanophotonics and Optical Fibers through 3D Nanoprinting: A Novel Approach for Tailored Light Control

Titel: Bridging Nanophotonics and Optical Fibers through 3D Nanoprinting: A Novel Approach for Tailored Light Control

Abstract:
Nanophotonics and fiber optics are both highly relevant fields at the forefront of modern photonics, yet they have largely evolved as separate disciplines with limited overlap. A promising strategy to unify these fields is 3D nanoprinting, which enables the transfer of fiber-optic concepts to on-chip photonics and the direct fabrication of nanoscale structures on the facet of optical fibers.
In the first part of the talk, I will report on the concept of meta-fibers - optical fibers functionalized with 3D nanoprinted nanostructures on their end faces used for tailored beam manipulation. I will discuss demonstrations including optical trapping of microspheres and bacteria, fiber-interfaced metasurfaces for achromatic focusing and advanced beam shaping, and tunable focus generation via phase-only holograms.
In the second half of the talk, I will present our recent progress in fiber-inspired on-chip hollow-core waveguides, emphasizing their potential for tailored light guiding via the anti-resonant effect. This interference-based mechanism allows light to propagate in low-index media such as gases and liquids, making them highly attractive for applications in vapor-phase spectroscopy, liquid-phase sensing, and nanoparticle tracking analysis to study the Brownian motion of nanoscale objects.
Taken together, these results demonstrate how 3D nanoprinting provides a flexible and powerful platform for custom beam control and novel photonic functionality at the interface of nanophotonics and fiber optics.

Biography
Markus A. Schmidt owns a full professorship for Fiber Optics at the Friedrich-Schiller University Jena and is head of the research department Fiber Photonics at the Leibniz Institute for Photonic Technologies (IPHT), leading the working group Hybrid Fibers. From 2006 to 2012 he was team leader of the group Nanowire in the division of Philip St. Russell at the Max Planck Institute for the Science of Light in Erlangen. He spent a twelve months research stay in the group of Stefan Maier at the Centre of Plasmonics and Metamaterials at Imperial College London in 2011. He obtained his PhD in 2006 from the Hamburg University of Technology. His main research topic is combining fibers and photonics with applications in areas such as integrated photonics, biophotonics, optofluidics, and nonlinear optics.

Sprecher / Speaker: Prof. Dr. Markus Schmidt, Leibniz-Institut für Photonische Technologien und Otto-Schott-Institut für Materialforschung der Uni Jena
Kontakt / Contact: Dr. Birgit Stiller

Norbert Lindlein lädt Sie zu einem geplanten Zoom-Meeting ein.
Norbert Lindlein invites you to a planned Zoom meeting.

Thema: Physikalisches Kolloquium 2025
Zoom-Link: https://fau.zoom-x.de/j/68551362278?pwd=oHQm2Uh6YzMzgJGLRP6WBSf2EgU3DA.1
Meeting-ID: 685 5136 2278
Kenncode: 283879