Title :
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
fDate :
4/1/2005 12:00:00 AM
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;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2004.843073
