All-Optical Magnetometer Based on Resonant Excitation of Rubidium Atoms by Frequency Modulated Diode Laser Light
S. Cartaleva a, T. Karaulanov a, N. Petrov a, D. Slavov a, K. Vaseva a, A. Yanev a, M. Mijailovic b, Z. Grujic b and B.M. Jelenkovic b
a Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Shosse bld, 1784 Sofia, Bulgaria
b Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia
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Received: 3 09 2007;
Magnetic field and its gradient measurements based on coherent population trapping resonances at the D1 line of 87Rb are performed by means of coupling two ground-state Zeeman sublevels belonging to different hyperfine levels to a common excited state. Two coherent laser fields with frequency difference of 6.8 GHz are used. They are produced by direct current modulation of a diode laser. The resonance splitting and broadening caused by the applied magnetic field is measured by scanning the laser modulation frequency around the ground-state hyperfine frequency.
DOI: 10.12693/APhysPolA.112.871
PACS numbers: 42.50.Gy, 07.55.Ge