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

被引：263
|
作者：
Seltzer, SJ [1 ]
Romalis, MV [1 ]
机构：
[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA
来源：
APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 20期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1063/1.1814434
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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/rootHz is demonstrated in a laboratory environment without magnetic shields. (C) 2004 American Institute of Physics.
引用
收藏
页码：4804 / 4806
页数：3
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