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Q: Fachverband Quantenoptik und Photonik

Q 59: Poster IV

Q 59.63: Poster

Donnerstag, 9. März 2023, 16:30–19:00, Empore Lichthof

Integration and coupling of quantum emitters in 2D materials to laserwritten waveguides — •Josefine Krause¹, Simone Piacentini², Mostafa Abasifard¹, Roberto Osellame², Giacomo Corrielli², and Tobias Vogl^1,3 — ¹Institute of Applied Physics, Albert-Einstein-Str. 15, 07745 Jena, Germany — ²Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche (IFN-CNR), Piazza Leonardo da Vinci 32, 20133 Milano, Italy — ³Fraunhofer-Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Str. 7, 07745 Jena, Germany

The practical application of quantum optics, for example in satellite-based quantum communication, requires the miniaturization of optical components into small devices. A hybrid solution is to integrate quantum emitters hosted in layered two-dimensional (2D) materials onto a photonic chip containing femtosecond laser-written waveguides. Emitters in 2D materials, such as hexagonal boron nitride, are suitable photon sources because of their high photon extraction efficiency due to the material's thinness. We demonstrate a deterministic transfer of an exfoliated tungsten disulfide emitter, employed as a test material for its bright fluorescence at room temperature, onto the front face of a waveguide through a viscoelastic stamping technique. The spectral emission properties of the integrated flake were maintained after the integration and coupling through the waveguide. Furthermore, with the goal of space-based applications, we successfully qualified different miniaturized photonic chips in their mechanical robustness during vibration and shock exposure imitating a rocket launch.