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Tunable Atomic Magnetometer for Detection of Radio-Frequency Magnetic Fields
Abstract
We describe an alkali-metal magnetometer for detection of weak magnetic fields in the radio-frequency (rf) range. High sensitivity is achieved by tuning the Zeeman resonance of alkali atoms to the rf frequency and partially suppressing spin-exchange collisions in the alkali-metal vapor. We demonstrate magnetic field sensitivity of 2 fT/Hz(1/2) at a frequency of 99 kHz with a resonance width of 400 Hz. We also derive a simple analytic expression for the fundamental limit on the sensitivity of the rf magnetometer and show that a sensitivity of about 0.01 fT/Hz(1/2) can be achieved in a practical system with a measurement volume of 200 cm3.
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Cites
A subfemtotesla multichannel atomic magnetometer
Kominis, I. K., Kornack, T. W., Allred, J. C., & Romalis, M. V. (2003) · Nature · doi:10.1038/nature01484 · Cited by 1,631
Self-citationA tuned SQUID amplifier for MRI based on a DOIT flux locked loop
Seton, H. C., Hutchison, J. M. S., & Bussell, D. M. (1997) · IEEE Transactions on Appiled Superconductivity · doi:10.1109/77.622015 · Cited by 26
Cited by
Budker, D., & Romalis, M. (2007) · Nature Physics · doi:10.1038/nphys566 · Cited by 1,916
Self-citationHigh-sensitivity operation of single-beam optically pumped magnetometer in a kHz frequency range
Savukov, I., Kim, Y. J., Shah, V, & Boshier, M. G. (2017) · Measurement Science and Technology · doi:10.1088/1361-6501/aa58b4 · Cited by 86
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Metadata
- Authors
- Savukov, I. M., Seltzer, S. J., Romalis, M. V., & Sauer, K. L.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2005-08-03
- Volume
- 95
- Issue
- 6
- Pages
- 063004-063004
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1973251399
- Cited by
- 313
- References
- 2
- FWCI
- 2.87
- Type
- journal article
- Language
- en
- Open access
- closed
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- Savukov, I. M., Seltzer, S. J., Romalis, M. V., & Sauer, K. L. (2005). Tunable Atomic Magnetometer for Detection of Radio-Frequency Magnetic Fields. Physical Review Letters. https://doi.org/10.1103/physrevlett.95.063004
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