US 11,054,489 B2
Vector magnetometer in alignment with two differently polarised probe beams
Augustin Palacios Laloy, Grenoble (FR); François Beato, Grenoble (FR); and Gaëtan Lieb, Grenoble (FR)
Assigned to COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, Paris (FR)
Filed by COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, Paris (FR)
Filed on Jul. 15, 2019, as Appl. No. 16/511,298.
Claims priority of application No. 1856554 (FR), filed on Jul. 16, 2018.
Prior Publication US 2020/0018802 A1, Jan. 16, 2020
Int. Cl. G01R 33/032 (2006.01)
CPC G01R 33/032 (2013.01) 11 Claims
OG exemplary drawing
 
1. A vector magnetometer comprising a cell (1) to be filled by an atomic gas, a photodetection device and an optical source configured to emit towards the cell:
a pump beam at least partially linearly polarised,
a first probe, and
a second probe beam,
wherein the first and second probe beams are polarised linearly, wherein the polarisation directions of the first and second probe beams and the polarisation direction of the pump beam are not coplanar and wherein the photo-detection device (6) is configured to receive light (L) from the first and second probe beams that have passed through the cell.