The following is an abstract for the selected article. A PDF download of the full text of this article is available here. Members may download full texts at no charge. Non-members may be charged a small fee for certain articles.
Hyperfine Relaxation of an Optically Pumped Cesium Vapor
Volume 40, Number 5 (July 1986) Page 596-599
Tornos, J.; Amare, J.C.
The relaxation of hyperfine orientation indirectly induced by optical pumping with σ-polarized D1-light in a cesium vapor in the presence of Ar is experimentally studied. The detection technique ensures the absence of quadrupole relaxation contributions in the relaxation signals. The results from the dependences of the hyperfine relaxation rate on the temperature and argon pressure are: diffusion coefficient of Cs in Ar, D0 = 0.101 ± 0.010 cm2s−1 at 0°C and 760 Torr; relaxation cross section by Cs-Ar collisions, σc = (104 ± 5) × 10−23cm2; relaxation cross section by Cs-Cs (spin exchange) collisions, σex = (1.63 ± 0.13) × 10−14 cm2.