Eur. Phys. J. D 38, 533-536 (2006)
https://doi.org/10.1140/epjd/e2006-00042-2

Photodetachment of H^- in a static electric field

Arbitrary laser polarization direction

Institute of Theoretical Physics, Academia Sinica, P.O. Box 2735, Beijing, 100080, P.R. China

Corresponding author: ^a Duml@itp.ac.cn

Received: 5 December 2005
Revised: 28 December 2005
Published online: 21 February 2006

Abstract

We derive a formula using closed-orbit theory for the photodetachment cross-section of H^- in the presence of a static electric field when there is an arbitrary angle θ_L between the laser polarization direction and the static electric field. This formula generalizes the previous result for laser polarization parallel to the static electric field, the effect of laser polarization direction appears as a factor cos²(θ_L) in the amplitude of the oscillation. A photodetachment cross-section formula valid above and below detachment threshold is proposed.