Mainz 2026 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 58: Quantum Technologies – Color Centers I
Q 58.5: Talk
Thursday, March 5, 2026, 15:30–15:45, P 5
Optical Integration of single NV-centers for Quantum Computing and Sensing — •Lucas Kirchbach1, 2, Andreas Giese1, Julian Staniewski2, Manuel Riedmann2, Robert Bruss1, Bernd Braun1, and Andreas Stute1,2 — 1Technische Hochschule Nürnberg Faculty AMP, Nürnberg, Germany — 2Technische Hochschule Nürnberg Faculty EFI, Nürnberg, Germany
Single Nitrogen-Vacancy centers (NV-centers) in diamond can be operated at ambient conditions as qubits in quantum memories and nanoscale quantum sensors. At TH Nürnberg, we plan to deterministically generate single NV-centers via femtosecond-laser pulses and integrate them into photonic platforms via 3D-printed microoptics and fs-written waveguides. This presentation gives a summary about our activites: The design and analysis of micro-lens systems to be manufactured via Two-Photon Polymerization on top of individual, self-written NV-centers for increased photon-collection efficiency, the programming of a spatial light modulator for wavefront optimization, the setup of a confocal scanning fluorescence microscope that addresses individual NV-Centers and laser material processing that allows to shape the diamond surface and to fabricate waveguides in the diamond for efficient optical coupling.
Keywords: NV-Centers; fs-laser; 3D-printing; integration; diamond