Coherent population trapping magnetometer by differential detecting magneto–optic rotation effect

A pocket coherent population trapping（CPT） atomic magnetometer scheme that uses a vertical cavity surface emitting laser as a light source is proposed and experimentally investigated.Using the differential detecting magneto–optic rotation effect,a CPT spectrum with the background canceled and a high...

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Bibliographic Details
Published inChinese physics B Vol. 25; no. 9; pp. 355 - 358
Main Author 张樊 田原 张奕 顾思洪
Format Journal Article
LanguageEnglish
Published 01.09.2016
Subjects
垂直腔面发射激光器
布居囚禁
捕获
探测
旋转效应
相干
磁光
磁强计
Online AccessGet full text
ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/25/9/094206

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Summary:A pocket coherent population trapping（CPT） atomic magnetometer scheme that uses a vertical cavity surface emitting laser as a light source is proposed and experimentally investigated.Using the differential detecting magneto–optic rotation effect,a CPT spectrum with the background canceled and a high signal-to-noise ratio is obtained.The experimental results reveal that the sensitivity of the proposed scheme can be improved by half an order,and the ability to detect weak magnetic fields is extended one-fold.Therefore,the proposed scheme is suited to realize a pocket-size CPT magnetometer.
Bibliography:Fan Zhang, Yuan Tian, Yi Zhang, and Si-Hong Gu（ Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China）
11-5639/O4
coherent population trapping atomic magnetometer magneto–optic rotation effect
A pocket coherent population trapping（CPT） atomic magnetometer scheme that uses a vertical cavity surface emitting laser as a light source is proposed and experimentally investigated.Using the differential detecting magneto–optic rotation effect,a CPT spectrum with the background canceled and a high signal-to-noise ratio is obtained.The experimental results reveal that the sensitivity of the proposed scheme can be improved by half an order,and the ability to detect weak magnetic fields is extended one-fold.Therefore,the proposed scheme is suited to realize a pocket-size CPT magnetometer.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/25/9/094206