Ultrafast F₂⁻ photodissociation by intense laser pulses: a time-resolved fragment imaging study

Abstract

We present time-resolved coincidence imaging of F2− photodissociation by 400nm and intense 800nm ultrafast pulses. Coincidence fragment imaging reveals parallel and perpendicular single photon dissociation on 2Σg+ and 2πg states, and additional intense-field dissociation features.

Dissociation in strong field: A quantum analysis of the relation between angular momentum and angular distribution of fragments

“…In a typical photodissociation experiment, the fragments are detected far from the dissociation point. At the detection point, the particles are characterized by their momentum, which is detected by velocity map imaging 15,25 . Comparable information can be calculated by the asymptotic momentum, amplitude, and direction, at far internuclear distance.…”

“…The current simulation uses the physical parameters of F − 2 . The motivation to use the F − 2 molecule as a benchmark follows from a recent experimental study by Strasser et al 14,15 . Furthermore, its electronic structure is rather simple: there are only four low-lying states before reaching the detachment continuum.…”