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Title: Effect of Spatial Homogeneity of Spin Polarization on Magnetic Field Response of an Optically Pumped Atomic Magnetometer Using a Hybrid Cell of K and Rb Atoms
Authors: Ito, Yosuke  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-3245-3840 (unconfirmed)
Ohnishi, Hiroyuki
Kamada, Keigo
Kobayashi, Tetsuo  kyouindb  KAKEN_id
Author's alias: 伊藤, 陽介
Keywords: Atomic magnetometer
biomagnetics
optical pumping
spin exchange
Issue Date: Nov-2012
Publisher: IEEE
Journal title: IEEE Transactions on Magnetics
Volume: 48
Issue: 11
Start page: 3715
End page: 3718
Abstract: We measured the spatial homogeneity of spin polarization, which is directly related to the sensitivity and magnetic linewidth of an optically pumped atomic magnetometer with a hybrid cell of K and Rb atoms. This was done by changing the position of the probe beam. Furthermore, for comparison, we also measured the sensitivity and magnetic linewidth of atomic magnetometers with single K and single Rb cells, and found that optically thick atoms were spin polarized homogeneously with the hybrid cell. Optically thin alkali metal vapor can be spin polarized homogeneously, and the spin polarization transfers to an optically thick alkali metal vapor. An atomic magnetometer with the hybrid cell was found to be more effective in realizing simultaneous signal measurements at different locations with the uniform sensitivity and magnetic linewidth.
Rights: © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。This is not the published version. Please cite only the published version.
URI: http://hdl.handle.net/2433/161658
DOI(Published Version): 10.1109/TMAG.2012.2199966
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