arXiv physics/03040392003-04physics.atom-ph

Observed photodetachment in parallel electric and magnetic fields

John N. Yukich, Tobias Kramer, Christian Bracher

备注：: Nine pages, five figures, minor revisions showing final publication
发表信息：: Physical Review A volume 68, 033412 (2003)
DOI：: 10.1103/PhysRevA.68.033412

英文摘要：

We investigate photodetachment from negative ions in a homogeneous 1.0-T magnetic field and a parallel electric field of approximately 10 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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