Detection of optical resonances by observation of fluorescence light emitted from a fast atomic beam when optical pumping occurs

2014 The sensitivity of the method of detection of optical resonances by observation of the fluorescence light emitted from a fast beam excited by a laser in collinear geometry is often limited by the optical pumping. In our method, we propose to take advantage of the optical pumping process to detect optical resonances by using a second laser beam in almost collinear geometry which acts as a detector of optical pumping. J. Physique LETTRES 41 (1980) L-407 L-408 Classification Physics Abstracts 52.50 1 er SEPTEMBRE 1980,