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TUE: Tuesday Contributed Sessions
TUE 4: Education and Outreach
TUE 4.5: Talk
Tuesday, September 9, 2025, 15:15–15:30, ZHG004
Modular Setup for Coherent Control Experiments on NV Centers in Diamond — •David Ahlmer1, Dennis Stiegekötter1, Jonas Homrighausen2, Marina Peters2,3, Markus Gregor2, and Peter Glösekötter1 — 1Department of Electrical Engineering and Computer Science, FH Münster, 48565 Steinfurt, Germany — 2Department of Engineering Physics, FH Münster, 48565 Steinfurt, Germany — 3Experimentalphysik, Universität des Saarlandes, 66123 Saarbrücken, Germany
Hands-on access to quantum state control experiments is often limited by cost and complexity. Initially kits allowing for experiments with NV centers have been presented. [1,2] We introduce a modular, 3D printable teaching platform that performs key experiments on colour centres in bulk diamond within a modular setup for educational purposes. The complete hardware costs about €500 split among electronics, cabling and optical components, making the system affordable for schools and undergraduate laboratories. The platform supports experiments to investigate optically detected magnetic resonance (ODMR), coherent Rabi oscillations, longitudinal relaxation (T1) and spin-echo coherence (T2) measurements on nitrogen-vacancy (NV) centres. Pulse sequences are generated by a microcontroller with a timing resolution of 53 ns [3]. By tuning the microwave drive power, the π/2-pulse duration can be set to integer multiples of this step size, enabling robust coherent spin control. [1] Stegemann, J. et al. Eur. J. Phys.44, 35402 (2023). [2] Haverkamp, N. et al. EPJ Quantum Technol. 12, 27 (2025). [3] Stiegekötter, D. et al. Sensors. 24, 3138 (2024).
Keywords: Quantum Education; Coherent Control; NV Center; Open Source