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Q: Fachverband Quantenoptik und Photonik
Q 43: Quantum Optics and Photonics
Q 43.4: Vortrag
Donnerstag, 12. März 2020, 11:45–12:00, f342
Nonlinear integrated waveguides with CVD-grown MoS2 and WS2 monolayers on exposed-core fibers — •Gia Quyet Ngo1, Robin Klaus Tristan Schock1, Antony George2, Emad Najafidehaghani2, Tobias Bucher1, Heiko Knopf1, Christof Neumann2, Heike Ebendorff-Heidepriem3, Andrey Turchanin2, Markus Schmidt4, and Falk Eilenberger1 — 1Institute of Applied Physics, Friedrich Schiller University, Jena, Germany — 2Institute of Physical Chemistry, Friedrich Schiller University, Jena, Germany — 3ARC Centre of Excellence for Nanoscale BioPhotonics, University of Adelaide, Australia — 4Leibniz Institute for Photonics Technologies IPHT, Jena, Germany
We demonstrate a novel type of waveguide functionalization, where crystalline MoS2 and WS2 monolayers are directly grown on the core of exposed-core fibers (ECFs) using CVD. These fibers opens up potential applications in nonlinear optics and real-time sensing. They overcome the sub-nanometer light-matter interaction length found in free-space interaction geometries. The TMDs interact with the guided light by the evanescent field of the fiber's guided mode. The successful deposition of MoS2 and WS2 layers on the core region was observed with a light microscope, Raman- and photoluminescence-spectroscopy. The excitonic peaks were recorded in photoluminescence and transmission spectroscopy. We will present and discuss experimental data, related to the fibers capability for sensing and for enhanced nonlinear interaction.