A project for a new alkali vapour magnetometer, optically pumped by a diode laser

N. Beverini, O. Faggioni, C. Carmisciano, E. Alzetta, E. Maccioni, M. Francesconi, A. Donati, E. Simeone, F. Strumia


We present here a project for the industrial development of a new magnetometer that is intended to achieve the highest performance in measuring geomagnetic field. The instrument is based on the well-known technology of optically pumped alkali vapour magnetometers. Unlike current commercial models, a diode laser replaces the traditional radio-frequency lamp as pumping source and our magnetometer uses potassium as reference atom, contrary to the more traditional cesium or rubidium. The advantages of this choice are discussed. Preliminary experimental results on a prototype show an expected accuracy better than 1 pT/Hz-1/2.


magnetometer;potassium;diode laser

Full Text:



DOI: https://doi.org/10.4401/ag-4335
We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it (Read more).

Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X