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Single frequency coherent-population-trapping resonances for magnetic field measurement

S. GATEVA1,* , E. ALIPIEVA1, L. PETROV1, E. TASKOVA1, G. TODOROV1

Affiliation

  1. Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee, 1784 Sofia, Bulgaria

Abstract

Experimental investigation of the width, amplitude and shape of the Coherent Population Trapping (CPT) resonances for magnetic field measurements by means of a Hanle effect configuration (the single frequency CPT resonances) is presented. Different resonance width narrowing effects for increasing the sensitivity of the magnetometers are discussed. Numerical simulations based on density matrix formalism, which take into account the influence of the high rank polarization moments and the velocity distribution of the atoms have been performed for analysis of the shapes of the resonances..

Keywords

Coherent population trapping, Line shapes and line widths, High rank polarization moments, Magnetometry.

Submitted at: Sept. 25, 2007
Accepted at: Jan. 18, 2008

Citation

S. GATEVA, E. ALIPIEVA, L. PETROV, E. TASKOVA, G. TODOROV, Single frequency coherent-population-trapping resonances for magnetic field measurement, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 1, pp. 98-103 (2008)