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 |