Title :
Sensing of RF Magnetic Fields Using Zeeman Splitting of Double Radiooptical Resonance and a New Approach to Helmholtz Coil Calibrations
Author :
Çakir, Soydan ; Hamid, Ramiz ; Çetintas, Mustafa ; Çakir, Gonca ; Sen, Osman
Author_Institution :
Nat. Metrol. Inst., TUBITAK, Kocaeli, Turkey
fDate :
7/1/2012 12:00:00 AM
Abstract :
We experimentally investigated the resonance interaction of laser, microwave, and radio frequency (RF) fields with Cesium (133Cs) atomic gas. The observed Zeeman components produced by means of an external static magnetic field on the double radiooptical resonance (DROR) were used as a frequency-adjustable RF field detection sensor based on the laser spectroscopy technique. The change in the RF interaction frequency of Zeeman components with the increasing level of the static magnetic field was investigated and linear dependence of the RF interaction frequency of the Zeeman components on the external static magnetic field was observed. In addition, the change in the amplitude of the Zeeman components with the level of RF fields was investigated and an approximately linear relation in certain regions was detected. We also studied the relation of the Zeeman component amplitudes with laser and microwave powers. Finally, a new approach to Helmholtz coil calibrations by using this atomic sensor is discussed.
Keywords :
Zeeman effect; caesium; calibration; magnetic sensors; Cs; DROR; Helmholtz coil calibrations; RF magnetic field sensing; Zeeman component RF interaction frequency linear dependence; Zeeman splitting; atomic sensor; cesium atomic gas; double radiooptical resonance; external static magnetic field; frequency-adjustable RF field detection sensor; laser powers; laser resonance interaction; laser spectroscopy technique; microwave powers; observed Zeeman components; Atomic measurements; Calibration; Coils; Magnetic field measurement; Magnetic fields; Masers; Radio frequency; Cesium; Helmholtz coil; Zeeman sublevels; laser spectroscopy; loop antenna; radio frequency (RF) field;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2012.2192921