Observed photodetachment in parallel electric and magnetic fields

被引：0

作者：

Yukich, John N. ^{[1
]}

Kramer, Tobias ^{[2
]}

Bracher, Christian ^{[3
]}

机构：

[1] Physics Department, Davidson College, P.O. Box 7133, Davidson, NC 28035-7133, United States

[2] Physik-Department T30c, Technische Universitat Munchen, James-Franck-Strasse, 85747 Garching, Germany

[3] Dept. of Phys. and Atmospheric Sci., Dalhousie University, Halifax, NS B3H 3J5, Canada

来源：

| 2003年 / American Physical Society卷 / 68期

关键词：

Electric field effects - Laser pulses - Magnetic field effects - Mathematical models - Negative ions;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Near-threshold s-wave photodetachment from atomic negative ions in parallel electric and magnetic fields was theoretically and experimentally studied. A fully quantum-mechanical theory based on the electron propagator allowed to calculate the transition rate in combined fields for a thermal ion cloud in a convenient manner, leaving only a single integral to be evaluated numerically. The theory predicted both a loss of contrast in the detachment rate and a shift of the photocurrent maxima towards higher laser frequencies as a consequence of the additional electric field.

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