Optical Ramsey-type magnetometer using coherent population trapping

Summary form only given. By now there have been proposed and partly realized in experiments several optical schemes for the precise measurement of a magnetic field. Among them the most promising methods are based on atomic coherence (first proposed by Scully and Fleischhauer in 1992). In one of optical schemes the interaction with spatially separated fields was used, following to the Ramsey method. We propose a new variant of magnetometer, where the advantages of the Ramsey method are combined with the high-contrast detection provided by the coherent population trapping effect. In our scheme for the measurement of arbitrary directed magnetic field B a cell with atomic vapor is used.