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How to build a magnetometer with thermal atomic vapor: a tutorial
New Journal of Physics, 2023 This article is designed as a step-by-step guide to optically pumped magnetometers based on alkali atomic vapor cells. We begin with a general introduction to atomic magneto-optical response, as well as expected magnetometer performance merits and how ...
Anne Fabricant +2 more
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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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A novel oven structure for improving temperature uniformity of vapor cell in atomic sensors
Results in Physics, 2023 Alkali-metal vapor cells are key elements of atomic sensors. The temperature uniformity in the vapor cell is important for the sensitivity of the atomic sensors especially highly-sensitive SERF atomic magnetometers.
Yanan Gao +6 more
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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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Frequency Response of Optically Pumped Magnetometer with Nonlinear Zeeman Effect
Applied Sciences, 2020 Optically pumped alkali atomic magnetometers based on measuring the Zeeman shifts of the atomic energy levels are widely used in many applications because of their low noise and cryogen-free operation.
Rui Zhang +4 more
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Different Configurations of Radio-Frequency Atomic Magnetometers—A Comparative Study
Sensors, 2022 We comprehensively explore different optical configurations of a radio-frequency atomic magnetometer in the context of sensor miniaturisation. Similarities and differences in operation principles of the magnetometer arrangements are discussed.
Patrick Bevington, Witold Chalupczak
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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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Sensors, 2023 Rubidium laser optically pumped magnetometers (OPMs) are widely used magnetic sensors based on the Zeeman effect, laser pumping, and magnetic resonance principles. They measure the magnetic field by measuring the magnetic resonance signal passing through
Kun Xu +9 more
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Photonics, 2023 The low-frequency fluctuations of the atomic density within the cell can induce the longterm drift of the K-Rb-21Ne spin-exchange relaxation-free (SERF) co-magnetometer output, such that the accurate measurement of in situ atomic density is of great ...
Sixun Liu, Zhuo Wang, Yueyang Zhai
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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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