Rb vapour Zeeman optical spectroscopy in a self-calibrated magnetic field
Year: 2026
Authors: Scotto S., Ciampini D., Battesti R., Rizzo C., Arimondo E.
Autors Affiliation: CNRS UT UGA INSA, UPR 3228, Lab Natl Champs Magnet Intenses, F-31400 Toulouse, France; Univ Pisa, Dipartimento Fis E Fermi, Largo B Pontecorvo 3, I-56122 Pisa, Italy; CNR, Ist Nazl Ott, Via G Moruzzi 1, I-56124 Pisa, Italy.
Abstract: High-resolution optical spectroscopy of Rb atoms in an intermediate-Zeeman magnetic field regime is performed. Magnetic fields between 0.05 T and 0.13 T are measured. We introduce a measurement approach based on three-level Λ systems where the open-loop frequency energy separation is determined by the applied magnetic field. Using this method an accuracy better than 100 ppm is reached in a measurement series. In parallel, on the basis of complementary measurements based on three-level V systems we obtain the first experimental value of the Landé g-factor of the first excited state for 85Rb, 85gJ(5P1/2)=0.66709(7), and for 87Rb, 87gJ(5P1/2)=0.6663(2). Our approach is unprecedented in the literature for Rb. Graphic abstract: Experimental results for the Land´e g-factor of the first excited state of Rb (Figure presented.)
Journal/Review: EUROPEAN PHYSICAL JOURNAL D
Volume: 80 (1) Pages from: 1-1 to: 1-12
More Information: Open access funding provided by Universite de Toulouse.KeyWords: Hyperfine-structureDOI: 10.1140/epjd/s10053-025-01112-9
