Supergrid Institute

Geoffrey Renon

Paul Vinson

The present invention relates to a device () for measuring a magnetic field (B) and/or an electric field (E) comprising:&#x2014;a measurement cell () enclosing a gas that is sensitive to the Zeeman effect and/or to the Stark effect, a polarised light source () the wavelength of which is tuned to an absorption line of the gas that is sensitive to the Zeeman effect and/or to the Stark effect,&#x2014;at least one polarimetry system () configured to measure a first parameter corresponding to the rotation by a polarisation angle caused by the passage of the beam () through the measurement cell () enclosing a gas that is sensitive to the Zeeman effect and/or to the Stark effect,&#x2014;a system () for measuring absorption, configured to measure a second parameter corresponding to the absorption of the beam () by the gas that is sensitive to the Zeeman effect and/or to the Stark effect in the measurement cell (), and a processing unit () configured to combine the measurement of the first parameter corresponding to the rotation by the polarisation angle and the absorption measurement in order to extract therefrom a third and/or fourth parameter corresponding respectively to an electric field (E) and/or a magnetic field (B) to be measured.

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Villeurbanne, France

Geoffrey Renon