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Improving the Sensitivity of a Dark-Resonance Atomic Magnetometer. [PDF]
Sensors (Basel)The combination of unmanned aerial vehicles and atomic magnetometers can be used for detection applications such as mineral resource exploration, environmental protection, and earthquake monitoring, as well as the detection of sunken ships and unexploded ordnance. A dark-resonance atomic magnetometer offers the significant advantages of a fully optical
Zhai H, Li W, Jin G.
europepmc +5 more sources
In-Situ Measurement of Electrical-Heating-Induced Magnetic Field for an Atomic Magnetometer [PDF]
Sensors, 2020 Electrical heating elements, which are widely used to heat the vapor cell of ultrasensitive atomic magnetometers, inevitably produce a magnetic field interference.
Jixi Lu, Ke Yang, Junpeng Zhao
exaly +3 more sources
Magnetoencephalography with a chip-scale atomic magnetometer. [PDF]
Biomed Opt Express, 2012 We report on the measurement of somatosensory-evoked and spontaneous magnetoencephalography (MEG) signals with a chip-scale atomic magnetometer (CSAM) based on optical spectroscopy of alkali atoms. The uncooled, fiber-coupled CSAM has a sensitive volume of 0.77 mm(3) inside a sensor head of volume 1 cm(3) and enabled convenient handling, similar to an ...
Sander TH +5 more
europepmc +3 more sources
NMR Detection with an Atomic Magnetometer [PDF]
Physical Review Letters, 2005 We demonstrate detection of NMR signals using a non-cryogenic atomic magnetometer and describe several novel applications of this technique. A water free induction decay (FID) signal in a 0.5 $μ$T field is detected using a spin-exchange-relaxation-free K magnetometer and the possibility of using a multi-channel magnetometer for 3-D MRI requiring only a
Savukov, I. M., Romalis, M. V.
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Anatomical MRI with an atomic magnetometer [PDF]
Journal of Magnetic Resonance, 2013 Ultra-low field (ULF) MRI is a promising method for inexpensive medical imaging with various additional advantages over conventional instruments such as low weight, low power, portability, absence of artifacts from metals, and high contrast. Anatomical ULF MRI has been successfully implemented with SQUIDs, but SQUIDs have the drawback of cryogen ...
Savukov, I., Karaulanov, T.
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Parametric modulation of an atomic magnetometer [PDF]
Applied Physics Letters, 2006 The authors report on a rubidium atomic magnetometer designed for use in a shielded environment. Operating in the spin-exchange relaxation-free regime, the magnetometer utilizes parametric modulation of the z-magnetic field to suppress noise associated with airflow through the oven and to simultaneously detect x- and y-field components, using a single ...
Zhimin, Li +2 more
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Ultrasensitive Magnetometer using a Single Atom [PDF]
Physical Review Letters, 2016 Precision sensing, and in particular high precision magnetometry, is a central goal of research into quantum technologies. For magnetometers, often trade-offs exist between sensitivity, spatial resolution, and frequency range. The precision, and thus the sensitivity of magnetometry, scales as $1/\sqrt {T_2}$ with the phase coherence time, $T_2$, of the
I. Baumgart +4 more
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Microfabricated atomic magnetometers and applications [PDF]
2008 IEEE International Frequency Control Symposium, 2008 We describe recent work at NIST to develop compact, sensitive atomic magnetometers using a combination of precision optical spectroscopy, atomic physics and techniques of micro-electro-mechanical systems (MEMS). These instruments have sensor head volumes in the range of a few cubic millimeters but are capable of sensing magnetic fields of a few ...
Kitching, John +8 more
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A cold atom radio-frequency magnetometer [PDF]
Applied Physics Letters, 2019 We propose and demonstrate a radio-frequency atomic magnetometer with sub-Doppler laser cooled rubidium-87. With a simple and compact design, our system demonstrates a sensitivity of 330 pT/Hz in an unshielded environment, thus matching or surpassing previously reported cold atom designs.
Yuval Cohen +6 more
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A nanosecond-resolved atomic hydrogen magnetometer
Physical Chemistry Chemical Physics, 2021 We introduce a novel and sensitive ns-resolved atomic magnetometer, which is at least three orders of magnitude faster than conventional magnetometers.
Alexandros K. Spiliotis +6 more
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