Results 41 to 50 of about 96,670 (200)
Triaxial closed-loop measurement based on a single-beam zero-field optically pumped magnetometer
Frontiers in Physics, 2022 In this study, we propose an approach for the simultaneous measurement of triaxial magnetic fields using a single-beam zero-field optically pumped atomic magnetometer, in which a rotational high-frequency (ω1) and another high-frequency (ω2) modulated ...
Kun Wang +14 more
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AIP Advances, 2023 Although vector potentials are more intrinsic physical quantities than magnetic and electric fields, measuring them macroscopically is difficult. A double-nested Helmholtz-type vector potential coil, consisting of an elongated solenoid coil wound around ...
Y. Shoji, M. Daibo
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Polarization Measurement of Cs Using the Pump Laser Beam
IEEE Photonics Journal, 2017 In the optically pumped systems, the spin polarization of the atoms is generally derived by employing additional modulations, in which way an extra perturbation will be introduced and thus affect the normal operation of the sensors.
Rujie Li, Wei Quan, Jiancheng Fang
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Pulsed operation of a miniature scalar optically pumped magnetometer. [PDF]
J Opt Soc Am B, 2017 A scalar magnetic field sensor based on a millimeter-size 87Rb vapor cell is described. The magnetometer uses nearly copropagating pump and probe laser beams, amplitude modulation of the pump beam, and detection through monitoring the polarization rotation of the detuned probe beam.
Gerginov V, Krzyzewski S, Knappe S.
europepmc +4 more sources
Three-axis closed-loop optically pumped magnetometer operated in the SERF regime.
Optics Express, 2022 We propose a three-axis closed-loop optically pumped magnetometer with high sensitivity. The closed-loop magnetometer has a three-axis sensitivity of approximately 30 fT/Hz1/2 using two orthogonal laser beams for pumping and probing the alkali metal ...
Yeguagn Yan +7 more
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Optically pumped magnetometer with high spatial resolution magnetic guide for the detection of magnetic droplets in a microfluidic channel [PDF]
New Journal of Physics, 2023 Quantum sensors provide unprecedented magnetic field detection sensitivities, enabling these to extend the common magnetometry range of applications and environments of operation.
M. Jofre, J. Romeu, L. Jofre-Roca
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Unshielded portable optically pumped magnetometer for the remote detection of conductive objects using eddy current measurements. [PDF]
Review of Scientific Instruments, 2022 Electrically conductive objects can be detected using the principle of electromagnetic induction, where a primary oscillating magnetic field induces eddy currents in the object, which in turn produce a secondary magnetic field that can be measured with a
L. Rushton +4 more
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Ultra-sensitive Magnetic Microscopy with an Optically Pumped Magnetometer. [PDF]
Sci Rep, 2016 AbstractOptically pumped magnetometers (OPMs) based on lasers and alkali-metal vapor cells are currently the most sensitive non-cryogenic magnetic field sensors. Many applications in neuroscience and other fields require high-resolution, high-sensitivity magnetic microscopic measurements. In order to meet this demand we combined a cm-size spin-exchange
Kim YJ, Savukov I.
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A project for a new alkali vapour magnetometer, optically pumped by a diode laser
Annals of Geophysics, 1998 We present here a project for the industrial development of a new magnetometer that is intended to achieve the highest performance in measuring geomagnetic field.
A. Donati +8 more
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Micromachines, 2023 Optically pumped gradiometers have long been utilized in measurement in the International Geomagnetic Reference Field (IGRF). With advancements in technologies such as laser diodes and microfabrication, integrated gradiometers with compact sizes have ...
Haifeng Dong +3 more
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