Mainz 2026 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 47: Quantum Technologies – Sensing II
Q 47.8: Vortrag
Donnerstag, 5. März 2026, 12:45–13:00, P 5
Multiparametric sensing with the nitrogen-vacancy color center in diamond — •Leon Advena1, Tofianme Sorgwe1, Florian Sledz1, Mario Agio1, 2, and Assegid Mengistu Flatae1 — 1Laboratory of Nano-Optics, University of Siegen, 57072 Siegen, Germany — 2National Institute of Optics (INO), National Research Council (CNR), 50125 Florence, Italy
Modern sensing applications increasingly require the simultaneous measurement of multiple physical parameters with high sensitivity. Nitrogen-vacancy centers in diamond present a promising solution to the various challenges associated with multiparametric sensing applications. These atomic-scale defects can be optically initialized, manipulated, and read out via laser excitation using optically detected magnetic resonance (ODMR). They are capable of operation under ambient and harsh conditions. Here, we demonstrate a simultaneous and internally cross-validated sensing platform capable of detecting both magnetic fields and temperature with sensitivities of around 500 nT/√Hz and 10 mK/√Hz, respectively. Our method integrates ODMR, zero-phonon line (ZPL) spectral shifts, and linewidth broadening, each providing independent spectral signatures sensitive to distinct physical effects. This approach enhances measurement precision, enables internal consistency checks, and decouples intertwined phenomena such as temperature-induced variations in magnetization. The demonstrated technique significantly expands the functional capabilities of NV-based sensors, advancing their potential for high-precision metrology in complex environments.
Keywords: Quantum Sensing; Optically detected magnetic resonance; Nitrogen vacancy centers; ODMR; NV