Ultrahigh sensitivity magnetic field and magnetization measurements with an atomic magnetometer

H. B. Dang; Adam C. Maloof; Michael V. Romalis

doi:10.1063/1.3491215

Ultrahigh sensitivity magnetic field and magnetization measurements with an atomic magnetometer

H. B. Dang, Adam C. Maloof, Michael V. Romalis

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

735 Scopus citations

Abstract

We describe an ultrasensitive atomic magnetometer based on optically pumped potassium atoms operating in a spin-exchange relaxation free regime. We demonstrate magnetic field sensitivity of 160 aT/Hz1/2 in a gradiometer arrangement with a measurement volume of 0.45 cm³ and energy resolution per unit bandwidth of 44. As an example of an application enabled by such a magnetometer, we describe measurements of weak remnant rock magnetization as a function of temperature with a sensitivity on the order of 10 ^-10 emu/cm³/Hz1/2 and temperatures up to 420°C.

Original language	English (US)
Article number	151110
Journal	Applied Physics Letters
Volume	97
Issue number	15
DOIs	https://doi.org/10.1063/1.3491215
State	Published - Oct 11 2010

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.3491215

Cite this

@article{fe771449ab0947538b9a3299f7d26600,

title = "Ultrahigh sensitivity magnetic field and magnetization measurements with an atomic magnetometer",

abstract = "We describe an ultrasensitive atomic magnetometer based on optically pumped potassium atoms operating in a spin-exchange relaxation free regime. We demonstrate magnetic field sensitivity of 160 aT/Hz1/2 in a gradiometer arrangement with a measurement volume of 0.45 cm3 and energy resolution per unit bandwidth of 44. As an example of an application enabled by such a magnetometer, we describe measurements of weak remnant rock magnetization as a function of temperature with a sensitivity on the order of 10 -10 emu/cm3/Hz1/2 and temperatures up to 420°C.",

author = "Dang, {H. B.} and Maloof, {Adam C.} and Romalis, {Michael V.}",

note = "Funding Information: We would like to thank Nick Swanson-Hysell and John Tarduno for useful discussions. This work was supported by NSF Grant No. PHY-0653433. ",

year = "2010",

month = oct,

day = "11",

doi = "10.1063/1.3491215",

language = "English (US)",

volume = "97",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "15",

}

TY - JOUR

T1 - Ultrahigh sensitivity magnetic field and magnetization measurements with an atomic magnetometer

AU - Dang, H. B.

AU - Maloof, Adam C.

AU - Romalis, Michael V.

N1 - Funding Information: We would like to thank Nick Swanson-Hysell and John Tarduno for useful discussions. This work was supported by NSF Grant No. PHY-0653433.

PY - 2010/10/11

Y1 - 2010/10/11

N2 - We describe an ultrasensitive atomic magnetometer based on optically pumped potassium atoms operating in a spin-exchange relaxation free regime. We demonstrate magnetic field sensitivity of 160 aT/Hz1/2 in a gradiometer arrangement with a measurement volume of 0.45 cm3 and energy resolution per unit bandwidth of 44. As an example of an application enabled by such a magnetometer, we describe measurements of weak remnant rock magnetization as a function of temperature with a sensitivity on the order of 10 -10 emu/cm3/Hz1/2 and temperatures up to 420°C.

AB - We describe an ultrasensitive atomic magnetometer based on optically pumped potassium atoms operating in a spin-exchange relaxation free regime. We demonstrate magnetic field sensitivity of 160 aT/Hz1/2 in a gradiometer arrangement with a measurement volume of 0.45 cm3 and energy resolution per unit bandwidth of 44. As an example of an application enabled by such a magnetometer, we describe measurements of weak remnant rock magnetization as a function of temperature with a sensitivity on the order of 10 -10 emu/cm3/Hz1/2 and temperatures up to 420°C.

UR - http://www.scopus.com/inward/record.url?scp=77958086932&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77958086932&partnerID=8YFLogxK

U2 - 10.1063/1.3491215

DO - 10.1063/1.3491215

M3 - Article

AN - SCOPUS:77958086932

SN - 0003-6951

VL - 97

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 15

M1 - 151110

ER -

Ultrahigh sensitivity magnetic field and magnetization measurements with an atomic magnetometer

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this