Hannover 2020 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 22: Posters: Quantum Optics and Photonics II

Q 22.24: Poster

Tuesday, March 10, 2020, 16:30–18:30, Empore Lichthof

High finesse fiber cavity as a light matter interface for quantum optics application — •Patrick Maier, Stefan Häußler, Gregor Bayer, Richard Waltrich, and Alexander Kubanek — Institut für Quantenoptik, Universität Ulm, Albert-Einstein-Allee 11, D-89081 Ulm

Quantum network applications based on entangled photons suffer from losses over large distances as well as classical applications. To overcome those losses quantum repeaters based on solid-state quantum emitters offer one promising solution. In particular color centers in diamond like the silicon vacancy (SiV⁻) and germanium vacancy (GeV⁻) in diamond and defect centers in tailored 2D materials are favourable due to their outstanding optical properties.
We demonstrate the feasibility of experiments with high rate of coherent photons using a coupled system of a high quality Fabry Perot microcavity and different color centers. We furthermore investigated and compared different color center host materials covering different spectral regions. As a next step the cavity setup is upgraded to a bath cryostat compatible design, especially considering stability and tuneability of the system.