Breakdown of Angular Momentum Selection Rules<? format?> in High Pressure Optical Pumping Experiments

B Lancor, E Babcock, R Wyllie, TG Walker - Physical review letters, 2010 - APS
Physical review letters, 2010APS
We present measurements, by using two complementary methods, of the breakdown of
atomic angular momentum selection rules in He-broadened Rb vapor. Atomic dark states
are rendered weakly absorbing due to fine-structure mixing during Rb-He collisions. The
effect substantially increases the photon demand for optical pumping of dense vapors.
We present measurements, by using two complementary methods, of the breakdown of atomic angular momentum selection rules in He-broadened Rb vapor. Atomic dark states are rendered weakly absorbing due to fine-structure mixing during Rb-He collisions. The effect substantially increases the photon demand for optical pumping of dense vapors.
American Physical Society
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