Transferring the attoclock technique to velocity map imaging

A velocity map imaging study

A study of the photodissociation dynamics of NO2 in the 200–205 nm region using resonance enhanced multiphoton ionization (REMPI) in conjunction with the velocity map imaging technique is presented. We chose this region because it allowed the use of a single laser to photodissociate the NO2 molecule and probe both the O(D2) fragment using (2+1) REMPI via the 3p ′1P1 state at 2× 205.47 nm and th...

Using Ion-velocity Map Imaging Technique to Study Photodissociation of 2-Bromopentane

The photodissociation dynamics of 2-bromopentane at ∼234 nm has been investigated by utilizing ion-velocity map imaging technique. The mapped images of Br(P3/2) (denoted as Br) and Br(P1/2) (denoted as Br∗) fragments were analyzed by means of the speed and angular distributions, respectively. The speed distributions can be fitted with two Gaussian components which are correlated to the two inde...

Surface three-dimensional velocity map imaging: A new technique for the study of photodesorption dynamics

Velocity-map imaging at low extraction fields.

We present a velocity-map imaging (VMI) setup for photoelectron imaging that utilizes low electric extraction fields. This avoids any complications that could arise from electrostatic interactions between the extraction field and the molecular properties that are probed and has a minimal effect on the trajectory of ions in ion beam experiments. By using an attractive potential supplied to the d...

AgO molecules from velocity map imaging studies

The near ultraviolet photodissociation dynamics of silver atom – rare gas dimers have been studied by velocity map imaging. Ag–RG (RG = Ar, Kr, Xe) species generated by laser ablation are excited in the region of the C (2