Free-Induction-Decay Magnetometer Based on a Microfabricated Cs Vapor Cell

被引：46

作者：

Hunter, D. ^{[1
]}

Piccolomo, S. ^{[1
]}

Pritchard, J. D. ^{[1
]}

Brockie, N. L. ^{[2
]}

Dyer, T. E. ^{[2
]}

Riis, E. ^{[1
]}

机构：

[1] Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland

[2] Texas Instruments Inc, Larkfield Ind Estate, Greenock PA16 0EQ, Scotland

来源：

PHYSICAL REVIEW APPLIED | 2018年 / 10卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

SPIN PRECESSION;

D O I：

10.1103/PhysRevApplied.10.014002

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe an optically pumped Cs magnetometer containing a 1.5-mm-thick microfabricated vapor cell with nitrogen buffer gas operating in a free-induction-decay configuration. This allows us to monitor the free Larmor precession of the spin-coherent Cs atoms by separating the pump and probe phases in the time domain. A single light pulse can sufficiently polarize the atomic sample; however, synchronous modulation of the light field actively drives the precession and maximizes the induced spin coherence. Both amplitude and frequency modulation have been implemented with noise floors of 3 and 16 pT/root Hz, respectively, within the Nyquist-limited bandwidth of 500 Hz.

引用

页数：10

共 36 条

[1]

[Anonymous], 2010, CESIUM D LINE DATA

[2] OPTICALLY DRIVEN SPIN PRECESSION [J].