Freiburg 2024 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 5: Magnetometry

Q 5.5: Vortrag

Montag, 11. März 2024, 12:15–12:30, HS 1221

Drone-suspended quantum gradiometer for detection of unexploded ordnance and geo-prospecting (QGrad) — •Gunnar Langfahl-Klabes, Denis Uhland, and Ilja Gerhardt — Leibniz University, Inst. of Solid-State Physics, Appelstr. 2, 30167 Hannover

The QGrad project aims to develop quantum sensors for unshielded airborne magnetometry. We use alkali vapour atoms and gradiometry to subtract signals from multiple magnetometers. This approach holds significance for uncovering hidden raw materials, pipelines, contaminated sites, foundations, and munitions, particularly addressing the challenge of locating land mines and explosive ordnance from past wars for safe clearance.

Our collaboration includes academic partner Leibniz Institute of Photonic Technologies Jena, and industrial partners Asdro GmbH, Optikron GmbH, Supracon AG, and Toptica Photonics AG exploring the gradiometer scheme, developing the required readout components, data processing capabilities and integration for flight use.

In Europe, such quantum magnetometers are commercially unavailable, making QGrad a pioneering initiative. We report on the current status of the project and the gradiometer scheme in particular.

Keywords: magnetometry; optically pumped magnetometry (OPM); unmanned aerial vehicles (UAV); quantum sensing