Unshielded three-axis vector operation of a spin-exchange-relaxation-free atomic magnetometer

S. J. Seltzer; M. V. Romalis

doi:10.1063/1.1814434

Unshielded three-axis vector operation of a spin-exchange-relaxation-free atomic magnetometer

S. J. Seltzer, M. V. Romalis

Research output: Contribution to journal › Article › peer-review

257 Scopus citations

Abstract

We describe a vector alkali-metal magnetometer that simultaneously and independently measures all three components of the magnetic field. Using a feedback system, the total field at the location of the magnetometer is kept near zero, suppressing the broadening due to spin-exchange collisions. The resonance linewidth and signal strength of the magnetometer compare favorably with two different scalar operation modes in which spin-exchange relaxation is only partially suppressed. Magnetic field sensitivity on the order of 1 pT/ √Hz is demonstrated in a laboratory environment without magnetic shields.

Original language	English (US)
Pages (from-to)	4804-4806
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	20
DOIs	https://doi.org/10.1063/1.1814434
State	Published - Nov 15 2004

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.1814434

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title = "Unshielded three-axis vector operation of a spin-exchange-relaxation-free atomic magnetometer",

abstract = "We describe a vector alkali-metal magnetometer that simultaneously and independently measures all three components of the magnetic field. Using a feedback system, the total field at the location of the magnetometer is kept near zero, suppressing the broadening due to spin-exchange collisions. The resonance linewidth and signal strength of the magnetometer compare favorably with two different scalar operation modes in which spin-exchange relaxation is only partially suppressed. Magnetic field sensitivity on the order of 1 pT/ √Hz is demonstrated in a laboratory environment without magnetic shields.",

author = "Seltzer, {S. J.} and Romalis, {M. V.}",

note = "Funding Information: The authors would like to thank Igor Savukov for assistance with constructing parts of the experiment. This research was funded by the NSF, the Packard Foundation, and Princeton University. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

year = "2004",

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doi = "10.1063/1.1814434",

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T1 - Unshielded three-axis vector operation of a spin-exchange-relaxation-free atomic magnetometer

AU - Seltzer, S. J.

AU - Romalis, M. V.

N1 - Funding Information: The authors would like to thank Igor Savukov for assistance with constructing parts of the experiment. This research was funded by the NSF, the Packard Foundation, and Princeton University. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 2004/11/15

Y1 - 2004/11/15

N2 - We describe a vector alkali-metal magnetometer that simultaneously and independently measures all three components of the magnetic field. Using a feedback system, the total field at the location of the magnetometer is kept near zero, suppressing the broadening due to spin-exchange collisions. The resonance linewidth and signal strength of the magnetometer compare favorably with two different scalar operation modes in which spin-exchange relaxation is only partially suppressed. Magnetic field sensitivity on the order of 1 pT/ √Hz is demonstrated in a laboratory environment without magnetic shields.

AB - We describe a vector alkali-metal magnetometer that simultaneously and independently measures all three components of the magnetic field. Using a feedback system, the total field at the location of the magnetometer is kept near zero, suppressing the broadening due to spin-exchange collisions. The resonance linewidth and signal strength of the magnetometer compare favorably with two different scalar operation modes in which spin-exchange relaxation is only partially suppressed. Magnetic field sensitivity on the order of 1 pT/ √Hz is demonstrated in a laboratory environment without magnetic shields.

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 20

ER -

Unshielded three-axis vector operation of a spin-exchange-relaxation-free atomic magnetometer

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