Observed photodetachment in parallel electric and magnetic fields

被引：26
|
作者：
Yukich, JN
Kramer, T
Bracher, C
机构：
[1] Davidson Coll, Dept Phys, Davidson, NC 28035 USA
[2] Tech Univ Munich, Phys Dept T30C, D-85747 Garching, Germany
[3] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada
来源：
PHYSICAL REVIEW A | 2003年 / 68卷 / 03期
关键词：
D O I：
10.1103/PhysRevA.68.033412
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate photodetachment from negative ions in a homogeneous 1.0-T magnetic field and a parallel ac electric field of similar to10 V/cm. A theoretical model for detachment in combined fields is presented. Calculations show that a field of 10 V/cm or more should considerably diminish the Landau structure in the detachment cross section. The ions are produced and stored in a Penning ion trap and illuminated by a single-mode dye laser. We present preliminary results for detachment from S- showing qualitative agreement with the model. Future directions of the work are also discussed.
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页数：8
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