Polarization of 4
S1) by optically pumped Rb
The Zeeman resonance in He(23S1) has been observed with narrow linewidth, ∼350 Hz, using a technique involving spin-dependent Penning collisions with optically pumped Rb. This linewidth is 100 times narrower than previously reported in determination of gJ(4He, 23S1). © 1975.
Keiser, GM; Robinson, HG; Johnson, CE
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