Mainz 2026 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 66: Poster – Quantum Technologies III
Q 66.31: Poster
Thursday, March 5, 2026, 17:00–19:00, Philo 2. OG
Investigation of the Dynamic 14N Nuclear Spin Polarization at Different Magnetic Field Strengths and Angles in Nitrogen-Vacancy Ensemble in Diamond — •Glen Neiteler1, Jonas Homrighausen1, Dennis Stiegekötter2, Ludwig Horsthemke2, Peter Glösekötter2, and Markus Gregor1 — 1Department of Engineering Physics, FH Münster University of Applied Sciences, Stegerwaldstr. 39, 48565 Steinfurt, Germany — 2Department of Electrical Engineering and Computer Science, FH Münster University of Applied Sciences, Stegerwaldstr. 39, 48565 Steinfurt, Germany
The spin-states of the nitrogen-vacancy (NV) centers in diamond can be studied and manipulated at room temperature and optically read out, making them uniquely suitable for low-cost quantum education kits, like a 3D-printed modular setup for quantum sensing or for coherent control experiments. As a first step toward developing a new educational kit for controlling the electron-nuclear spin interaction, we aim to demonstrate the 14N nuclear spin polarization in NV ensemble in diamond. Thus, we experimentally investigate dynamic 14N nuclear spin polarization at small magnetic field angles and angles larger than 2 °, which have not yet been reported in literature, for various magnetic field strengths from 0-60 mT, covering the region of excited-state level anticrossing. This study helps us to identify a compromise between sufficient 14N nuclear spin polarization, magnetic field strength and magnetic field orientation for development our new educational kit.
Keywords: nuclear spin polarization; nuclear spin; nitrogen-vacancy; color center; NV center