Femtotesla atomic magnetometry in a microfabricated vapor cell

被引：135
|
作者：
Griffith, W. Clark [1 ]
Knappe, Svenja [1 ,2 ]
Kitching, John [1 ]
机构：
[1] Natl Inst Stand & Technol, Div Time & Frequency, Boulder, CO 80305 USA
[2] Univ Colorado, Boulder, CO 80309 USA
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 26期
关键词：
D O I：
10.1364/OE.18.027167
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We describe an optically pumped Rb-87 magnetometer with 5 fT/Hz(1/2) 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 mm(3), 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. (C)2010 Optical Society of America
引用
收藏
页码：27167 / 27172
页数：6
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