High-sensitivity operation of single-beam optically pumped magnetometer in a kHz frequency range

Savukov, Igor Mykhaylovich; Kim, Y. J.; Shah, V.; Boshier, M. G.

doi:10.1088/1361-6501/aa58b4

Title: High-sensitivity operation of single-beam optically pumped magnetometer in a kHz frequency range

Journal Article · Thu Feb 02 00:00:00 EST 2017 · Measurement Science and Technology

DOI:https://doi.org/10.1088/1361-6501/aa58b4· OSTI ID:1344356

^[1]; Kim, Y. J. ^[1]; Shah, V. ^[2]; Boshier, M. G. ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
QuSpin Inc., Louisville, CO (United States)

Here, optically pumped magnetometers (OPM) can be used in various applications, from magnetoencephalography to magnetic resonance imaging and nuclear quadrupole resonance (NQR). OPMs provide high sensitivity and have the significant advantage of non-cryogenic operation. To date, many magnetometers have been demonstrated with sensitivity close to 1 fT, but most devices are not commercialized. Most recently, QuSpin developed a model of OPM that is low cost, high sensitivity, and convenient for users, which operates in a single-beam configuration. Here we developed a theory of single-beam (or parallel two-beam) magnetometers and showed that it is possible to achieve good sensitivity beyond their usual frequency range by tuning the magnetic field. Experimentally we have tested and optimized a QuSpin OPM for operation in the frequency range from DC to 1.7 kHz, and found that the performance was only slightly inferior despite the expected decrease due to deviation from the spin-exchange relaxation-free regime.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1344356

Report Number(s):: LA-UR-16-24444; TRN: US1700892

Journal Information:: Measurement Science and Technology, Vol. 28, Issue 3; ISSN 0957-0233

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 47 works

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Cited By (5)

Experimental limit on an exotic parity-odd spin- and velocity-dependent interaction using an optically polarized vapor Kim, Young Jin; Chu, Ping-Han; Savukov, Igor Nature Communications, Vol. 10, Issue 1 https://doi.org/10.1038/s41467-019-10169-1	journal	May 2019
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Hybrid GMR Sensor Detecting 950 pT/sqrt(Hz) at 1 Hz and Room Temperature Guedes, André; Macedo, Rita; Jaramillo, Gerardo Sensors, Vol. 18, Issue 3 https://doi.org/10.3390/s18030790	journal	March 2018
Nondestructive in-line sub-picomolar detection of magnetic nanoparticles in flowing complex fluids Bougas, Lykourgos; Langenegger, Lukas D.; Mora, Carlos A. ETH Zurich https://doi.org/10.3929/ethz-b-000246246	text	January 2018
Experimental limit on an exotic parity-odd spin- and velocity-dependent interaction using an optically polarized vapor Kim, Young Jin; Chu, Ping-Han; Savukov, Igor arXiv https://doi.org/10.48550/arxiv.1902.00128	text	January 2019

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