Patent · US Active

All-optical and isotropic magnetometer

US10371764B2 · kind B2 · utility

39Cited by

3References

19Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Sophie Morales · Varces, FR
Mathieu Baicry · Saint-Égrève, FR
Francois-Yves Bertrand · Sunnyvale, US
Matthieu Le Prado · Romans-sur-Isère, FR
Jean-Michel Leger · Meylan, FR
Umberto Rossini · Voiron, FR
Jaroslaw Rutkowski · Grenoble, FR

Key dates

Filing date	Jul 7, 2016
Grant date	Aug 6, 2019
Priority date	—
Expiry date	Jun 19, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/26
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An optical pumping and isotropic measurement magnetometer. The magnetometer is all-optical in the sense that resonance between Zeeman sub-levels is induced by modulating the intensity or the frequency of the pump beam. Resonance is detected either using the pump beam itself or an unmodulated probe beam. The pump beam is linearly polarised and its polarisation direction is kept constant relative to the direction of the magnetic field to be measured, so that a measurement independent of the orientation of the field can be made.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.