SAMOP 2023 – wissenschaftliches Programm

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QI: Fachverband Quanteninformation

QI 23: Poster II (joint session QI/Q)

QI 23.29: Poster

Mittwoch, 8. März 2023, 16:30–19:00, Empore Lichthof

Towards a Micro-Integrated Optically Pumped Magnetometer for Biomagnetism in Space — •Kirti Vardhan1, Sascha Neinert1,2, Jenichi Felizco2, Marc Christ1,2, Kai Gehrke2, Andreas Thies2, Olaf Krüger2, Martin Jutisz1,2, Mustafa Gündoğan1,2, Victor Lebedev3, Stefan Hartwig3, Simon Nordenström3, Thomas Middelmann3, and Markus Krutzik1,21Humboldt-Universität zu Berlin, Berlin, Germany — 2Ferdinand-Braun-Institut, Berlin, Germany — 3Physikalisch-Technische Bundesanstalt, Berlin, Germany

Detecting astronauts’ neuromuscular degeneration with conventional methods such as surface or needle electromyography is inadequate or too detrimental. Optically pumped magnetometers (OPMs), on the other hand, allow for flexible handling and non-invasive measurements, utilizing the unique properties of alkali atom vapors interacting with external magnetic fields and laser light.

In this poster, we report on our progress towards a miniaturised, ruggedized OPM sensor head based on in-house fabricated MEMS cells for measuring biomagnetic signals in a moderately shielded environment. To this end we compare the performance of first prototypes of a micro-integrated sensor to a functional lab-scale magnetometer setup.

This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Climate Action (BMWK) due to an enactment of the German Bundestag under grant numbers 50WM2168 and 50WM2169.

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