SKM 2023 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 23: Poster Magnetism I
MA 23.43: Poster
Dienstag, 28. März 2023, 17:00–19:00, P1
Application of high magnetic fields to micron-scale NMR spectroscopy with quantum sensors in diamond — •Rouven Maier, Jonas Meinel, Vadim Vorobyov, and Jörg Wrachtrup — 3rd Institute of Physics, University of Stuttgart, Germany
Nuclear magnetic resonance (NMR) spectroscopy is widely used in fields ranging from chemical structure analysis to tissue imaging in clinical applications. The requirement of large sample volumes poses one of the major drawbacks of classical NMR measurements. Micron- and nano-scale NMR spectroscopy using quantum sensors, such as nitrogen-vacancy (NV) centers in diamond, has been a constant field of research over the past years. Recent developments of innovative detection schemes, such as the quantum-heterodyne (qdyne) protocol showed promising results by enabling resolutions independent of the inherent lifetime of the sensor spin. We present the experimental layout for the extension of quantum NMR sensing towards high magnetic fields, to enable chemical resolution at the micron-scale. This approach combines the frequency resolution necessary for chemical characterization with accurate spatial information. Signal sources could include 2H, 13C and 19F from biomolecules and materials attached to the diamond surface.