J. Phys. IV France 01 (1991) C7-489-C7-492
4He OPTICAL PUMPING WITH POLARIZATION MODULATED LIGHT AND MAGNETOMETRY APPLICATIONH. GILLES, B. CHERON and J. HAMEL
Laboratoire de Spectroscopie Atomique (URA 19), ISMRa, 6 boulevard Maréchal Juin, F-14050 Caen cedex, France
In optical pumping experiments using a laser, beam polarization can be modulated with the help of an electrooptic modulator device. This technique has been applied to pump 4He(23S1) metastable atoms. New resonances, never observed before, has been studied theoretically and experimentally versus geometric and modulation parameters and an application to high sensitivity magnetometer is presented.
© EDP Sciences 1991