Results 201 to 210 of about 25,141 (249)

Superconducting Quantum Magnetometers for Brain Investigations. [PDF]

Sensors (Basel)
Bonavolontà C, Vettoliere A, Sorrentino P, Granata C.   +3 more
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First Detection of Deuterium in Venus's Extended Exosphere

Weichbold F, Lammer H, Scherf M, Schmid D, Simon-Wedlund C, Volwerk M, Mazelle C, Wieser GS, Constatinou T, Futaana Y, Woitke P, Ferus M, Baumjohann W, Barabash S, Delva M, Eminger P, Helling C, Jarosikova A, Jernej I, Kacina J, Lichtenegger H, Magnus W, Nakamura R, Nemeckova K, Rimmer P, Varsani A, Voros Z, Zhang T.   +27 more
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Electromagnetic Induction Imaging with Atomic Magnetometers

, 2018
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Interleaved NQR detection using atomic magnetometers

Journal of Magnetic Resonance, 2022
Interleaved Nuclear Quadrupole Resonance (NQR) detection was conducted on ammonium nitrate and potassium chlorate using two 87Rb magnetometers, where potassium chlorate is measured during the T1 limited recovery time of ammonium nitrate. The multi-pass magnetometers are rapidly matched to the NQR frequencies, 531 kHz and 423 kHz, with the use of a ...
Darwin R, Quiroz, Robert J, Cooper, Elizabeth L, Foley, Thomas W, Kornack, Garrett J, Lee, Karen L, Sauer   +5 more
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Atomic beam magnetometer

Applied Scientific Research, 1973
The application of a novel atomic beam magnetic resonance technique to the measurement of magnetic fields is described. The technique has been used previously in electric field experiments to determine the upper limit to the permanent electric dipole moment of the cesium atom.
J. P. Carrico, T. S. Stein
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A subfemtotesla multichannel atomic magnetometer

Nature, 2003
The magnetic field is one of the most fundamental and ubiquitous physical observables, carrying information about all electromagnetic phenomena. For the past 30 years, superconducting quantum interference devices (SQUIDs) operating at 4 K have been unchallenged as ultrahigh-sensitivity magnetic field detectors, with a sensitivity reaching down to 1 fT ...
I K, Kominis, T W, Kornack, J C, Allred, M V, Romalis   +3 more
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Mems-Enabled Quantum Atomic Magnetometers

2021 IEEE 34th International Conference on Micro Electro Mechanical Systems (MEMS), 2021
Sensors based on quantum-effects in atoms have seen rapid transitions from proof-of-principle experiments to commercial devices. Quantum atomic magnetometers based on alkali vapor cells benefit from high sensitivities combined with simple optical setups. This can be beneficial for magnetic imaging applications that need large numbers of pixels. We have
Sean Krzyzewski, Orang Alem, Svenja Knappe   +2 more
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Chip Scale Atomic Magnetometers

INTERMAG 2006 - IEEE International Magnetics Conference, 2006
An optically pumped magnetometer was drastically miniaturized, by taking advantage of MEMS techniques, producing the chip-scale atomic magnetometers (CSAM) physics package. The key component of the package is an alkali vapor cell. To probe the magnetic field experienced by the atoms, the injection current to the VCSEL was modulated at 3.4 GHz near half
P. Schwindt, B. J. Lindseth, S. Knappe, V. Shah, L. Liew, J. Moreland, L. Hollberg, J. Kitching   +7 more
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Chip-scale atomic magnetometer

2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006
We report recent improvements on our microfabricated atom-optical magnetometer. Using a semiconductor laser and 1 mm3 alkali vapor cell, our magnetometer detects a magnetic field at 50 pT / Hz1/2 sensitivity in a 12 mm3 package.
P. D. D. Schwindt, B. J. Lindseth, V. Shah, S. Knappe, J. Kitching   +4 more
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Chip-scale atomic magnetometer

Applied Physics Letters, 2004
Using the techniques of microelectromechanical systems, we have constructed a small low-power magnetic sensor based on alkali atoms. We use a coherent population trapping resonance to probe the interaction of the atoms’ magnetic moment with a magnetic field, and we detect changes in the magnetic flux density with a sensitivity of 50pTHz−1∕2 at 10Hz ...
Peter D. D. Schwindt, Svenja Knappe, Vishal Shah, Leo Hollberg, John Kitching, Li-Anne Liew, John Moreland   +6 more
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