Photoionization cross-sections of the first excited states of sodium and lithium in a magneto-optical trap

被引：41
|
作者：
Wippel, V
Binder, C
Huber, W
Windholz, L
Allegrini, M
Fuso, F
Arimondo, E
机构：
[1] Graz Tech Univ, Inst Phys Expt, A-8010 Graz, Austria
[2] Univ Pisa, Dipartimento Fis, INFM, I-56127 Pisa, Italy
来源：
EUROPEAN PHYSICAL JOURNAL D | 2001年 / 17卷 / 03期
关键词：
D O I：
10.1007/s100530170002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A two element magneto-optical trap (MOT) for Na and Li-7 or Li-6 is used to cool and trap each of them separately. A fraction of the cold atoms is maintained in the first P-2(3/2) excited state by the cooling laser. These excited state atoms are ionized by laser light in the near-UV region, giving rise to a smaller number of trapped atoms and to different loading parameters. Photoionization cross-sections were derived out of these data. They are in reasonable agreement with data previously obtained using thermal samples and with theoretical predictions.
引用
收藏
页码：285 / 291
页数：7
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