title: An Optically Pumped Magnetometer Working in the Light-Shift Dispersed Mz Mode.
abstract: We present an optically pumped magnetometer working in a new operational mode-the light-shift dispersed Mz (LSD-Mz) mode. It is realized combining various features; (1) high power off-resonant optical pumping; (2) Mz configuration, where pumping light and magnetic field of interest are oriented parallel to each other; (3) use of small alkali metal vapor cells of identical properties in integrated array structures, where two such cells are pumped by circularly polarized light of opposite helicity; and (4) subtraction of the Mz signals of these two cells. The LSD-Mz magnetometer's performance depends on the inherent and very complex interplay of input parameters. In order to find the configuration of optimal magnetometer resolution, a sensitivity analysis of the input parameters by means of Latin Hypercube Sampling was carried out. The resulting datasets of the multi-dimensional parameter space exploration were assessed by a subsequent physically reasonable interpretation. Finally, the best shot-noise limited magnetic field resolution was determined within that parameter space. As the result, using two 50 mm3 integrated vapor cells a magnetic ﬁeld resolution below 10 fT/√Hz at Earth's magnetic ﬁeld strength is possible.
authors.affiliation: Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, D-07745 Jena, Germany. volkmar.schultze@leibniz-ipht.de.
authors.forename: Volkmar
authors.initials: V
authors.lastname: Schultze
authors.affiliation: Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, D-07745 Jena, Germany. bastian.schillig@yahoo.de.
authors.forename: Bastian
authors.initials: B
authors.lastname: Schillig
authors.affiliation: Supracon AG, An der Lehmgrube 11, D-07751 Jena, Germany. rob.ijsselsteijn@supracon.com.
authors.forename: Rob
authors.initials: R
authors.lastname: IJsselsteijn
authors.affiliation: Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, D-07745 Jena, Germany. theo.scholtes@leibniz-ipht.de.|Present Address: Physics Department, University of Fribourg, Chemin du Mus. theo.scholtes@leibniz-ipht.de.
authors.forename: Theo
authors.initials: T
authors.lastname: Scholtes
authors.affiliation: Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, D-07745 Jena, Germany. stefan.woetzel@leibniz-ipht.de.
authors.forename: Stefan
authors.initials: S
authors.lastname: Woetzel
authors.affiliation: Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, D-07745 Jena, Germany. ronny.stolz@leibniz-ipht.de.
authors.forename: Ronny
authors.initials: R
authors.lastname: Stolz
keywords: Downhill simplex; Latin Hypercube Sampling; Mz; light shift; magnetic-field resolution; magnetometer; optically pumped magnetometer