Static electric-field effects in the photodetachment of Cs{sup -} at the {sup 3}P resonance region
Journal Article
·
· Physical Review. A
- Department of Physics and Astronomy, University of Nebraska, Lincoln, Nebraska 68588-0111 (United States)
We calculated near-threshold photodetachment cross sections for Cs{sup -} in the presence of a dc electric field using three different approaches: the frame-transformation method with and without rescattering effects and the Kirchhoff-integral approach. Radial wave functions for the electronic motion were obtained using the Pauli equation method with a model potential describing the effective electron-atom interaction. Our results demonstrate the inadequacy of the frame-transformation method in the {sup 3}P resonance region even for weak fields (E<10 kV/cm). We show that the triplet and singlet contributions to the total cross section can be manipulated by varying the external electric field. This can enhance spin-orbit effects in the photodetachment process and create more favorable conditions in the experiment for the observation of the lowest {sup 3}P resonance in Cs{sup -}.
- OSTI ID:
- 20640500
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 68; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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