'Zeroing' of Magnetic Resonance signals and Amplitude Noises caused by frequency emission fluctuations when Pumping atoms with D2 - line in Magnetometers and gas-cell frequency Standards

摘要

Based on experimental investigations, a role of D2 - line''s cyclic transitions is shown in occurrence of "zeroing" signals and noise (AAN, FM-AM) and "zeroing" points displacement in cells with wall-coating when using lamp pumping. Such a phenomenon is considered as a behaviour of Sz(0) and Sx(0) signals in the Zeeman''s structure of the hyperfine F=I+J state for various alkali atoms (133Cs, 87Rb, 39K, 41K). It is shown, in particular, that FM-AM conversion disappears and SNR increase at the point of zeroing the first derivative of resonance signal. It is proposed to use a zeroing point for laser''s frequency stabilization as well as for contactless measurement and stabilization of temperature as regards the operating gas itself in the absorption cell.