Griffith, W.
, Knappe, S.
and Kitching, J.
(2010),
Femtotesla atomic magnetometry in a microfabricated vapor cell, Optics Express, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906531 (Accessed May 5, 2026)
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Femtotesla atomic magnetometry in a microfabricated vapor cell
Published
Author(s)
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Abstract
We describe an optically pumped 87Rb magnetometer with 4.5 fT/Hz1/2 sensitivity when operated in the spin-exchange relaxation free (SERF) regime. The magnetometer uses a microfabricated vapor cell, consisting of a cavity etched in a 1 mm thick silicon wafer with anodically bonded pyrex windows. The measurement volume of the magnetometer is 1 mm3, defined by the overlap region of a circularly polarized pump laser, and a linearly polarized probe laser, both operated near 795 nm. Sensitivity limitations unique to the use of microfabricated cells are discussed.Citation
Optics Express
Volume
18
Pub Type
Journals
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Keywords
atomic magnetometer, CSAM, microfabricated magnetometer
Citation
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Created December 19, 2010, Updated October 12, 2021