PUMP FREQUENCY CALIBRATION OPTICALLY WITH REDUCED STARK AC SHIFT.

摘要

P This device (20) includes an absorber (13) irradiated by a first radiation source (21) producing a first electromagnetic pumping radiation of a frequency vL which induces transitions between first and third states of energy and irradiates the absorber (13), a radiation source (18) producing a second electromagnetic radiation having a frequency vM, which induces transitions between the first and second energy states and irradiating the absorber, a device controller (16) adjusts vM to maintain an absorption value of the first radiation and a control device (22) which adjusts vL to a value offset from VMAX and leading to maximum absorption by the absorber , the offset reducing the dependence of vM vis-à-vis the intensity of the source (21) .Application including magnetometers. / p