Potential of the single-frequency CPT resonances for magnetic field measurement

Author

Alipieva, Emilia ; Gateva, Sanka V. ; Taskova, Elena

Author_Institution

Inst. of Electron., Bulgarian Acad. of Sci., Sofia, Bulgaria

Volume

54

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

738

Lastpage

741

Abstract

Coherent population trapping (CPT) resonances on degenerate two-level system of D₁ line of ⁸⁷Rb were investigated with single-frequency laser excitation in Hanle configuration. Their sensitivity to stray magnetic fields was examined for linear, elliptical, and circular laser polarization. A methodology for magnetic field (MF) measurement using the CPT resonance is proposed. The sensitivity of the system to weak magnetic fields was evaluated and a magnetic field of 3 nT was unambiguously detected.

Keywords

magnetic field measurement; magneto-optical effects; magnetometers; polarisation; resonance; rubidium; 3 nT; D₁ line system; Hanle configuration; Rb; coherent population trapping resonances; degenerate two level system; laser polarization; magnetic field measurement; magnetometers; magnetooptic effects; single frequency laser excitation; Atomic measurements; Fluorescence; Laser excitation; Laser transitions; Magnetic field measurement; Magnetic resonance; Polarization; Radio frequency; Solenoids; Stationary state; Magnetic field measurement; magnetometers; magnetooptic effects;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2004.843073

Filename

1408277