Effects of nitrogen quenching gas on spin-exchange optical pumping of 3He

被引：12

作者：

Lancor, B. ^{[1
]}

Walker, T. G. ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW A | 2010年 / 82卷 / 04期

关键词：

RELAXATION; RB; POLARIZATION;

D O I：

10.1103/PhysRevA.82.043417

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We consider the degree of conservation of nuclear spin polarization in the process of optical pumping under typical spin-exchange optical pumping conditions. Previous analyses have assumed that negligible nuclear spin precession occurs during the brief periods of time in which the alkali-metal atoms are in the excited state after absorbing photons and before undergoing quenching collisions with nitrogen molecules. We include excited-state hyperfine interactions, electronic spin relaxation in collisions with He and N-2, spontaneous emission, quenching collisions, and a simplified treatment of radiation trapping.

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页数：7

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