Atomic magnetometers offer high sensitivity for measuring magnetic fields in areas such as biomagnetic monitoring, non-destructive testing, geological exploration, and fundamental physics research. Unlike superconducting quantum interference devices (SQUIDs), they do not require cryogenic operating temperatures, making them more practical for a range of real-world conditions. In addition, they...
The measurement of magnetic muscle signals requires sensors that go far beyond state-of-art in terms of their bandwidth and angular accuracy. In addition, practical applications require sensors that can tolerate elevated background fields. Magnetic muscle measurements were performed with the sensor developed within the MyoQuant project and promise new insights into the understanding of these...
Magnetomyography (MMG), the measurement of magnetic fields produced by muscle activity, remains a scarcely explored topic in biomagnetism. The commercialization of miniaturized zero-field optically pumped magnetometers (OPMs) in the past decade has sparked new interest in in vivo MMG investigations, as sensor grid geometries can now be flexibly adapted to the anatomical shapes of individual...
We leverage an array of commercially available OPMs to perform sensitive, high throughput nuclear magnetic resonance (NMR) on multiple chemical samples simultaneously for the first time by leveraging the zero- to ultralow-field (ZULF) regime, with proof-of-principle demonstrations suggesting the feasibility of constructing a 100-OPM-channel device. This regime offers many advantages over...
In this talk, I will give an overall introduction on our recent progresses on the applications of high sensitivity atomic magnetometry in this field of biomagnetism, magnetic-field standard, and searches for exotics physics. For biomagnetism, I will introduce the basic idea of measuring the bio-magnetic field signals with atomic magnetometers in unshielded environment, as well as the...
