Green’s function for δ-function potentials with a hard core: Application to multiphoton photodetachment of negative halogen ions

Abstract

We develop a simple Green's function for 6-function potentials with a hard core, and use it to calculate polarizabilities of negative halogen ions and multiphoton-detachment cross sections for these ions.The predictions indicate an influence of a resonance for two-and three-photon cross sections, and yield approximately universal relative amplitudes as functions of a scaled electron energy.

Pulsed photodetachment microscopy and the electron affinity of iodine

“…Iodine was later implied in more extensive measurements of multiphoton detachment cross-sections on all halogen anions (Blondel et al 1989) and measurements of multiphoton detachment photoelectron angular distributions (Blondel et al 1992), including the effect of elliptically polarized light (Blondel and Delsart 1993). The multiphoton detachment parameters measured in these experiments were the reference of a series of theoretical studies (Crance 1988, Patil 1992, Gribakin et al 1999. More recently, I − was considered for a theoretical study of double detachment in a strong laser field (van der Hart 2006).…”