Coincident angle-resolved state-selective photoelectron spectroscopy of acetylene molecules: a candidate system for time-resolved dynamics

Abstract

The acetylene-vinylidene system serves as a benchmark for investigations of ultrafast dynamical processes where the coupling of the electronic and nuclear degrees of freedom provides a fertile playground to explore...

Controlling Fragmentation of the Acetylene Cation in the Vacuum Ultraviolet via Transient Molecular Alignment

“…Experimental measurements regarding the single-photon ionization cross sections at the photon energy used in this work (23.29 eV) support the fact that ionization mainly takes place from the 1π u molecular orbital (ionization potential (IP) = 11.3 eV), as it exhibits the highest partial photoionization cross section in the photon energy region of interest Figure shows the yields for the 1π u , 2σ u , and 3σ g photoelectron channels that are accessible − for the photon energy used in this experimental campaign, displayed as a function of the interlaser time delay. The calculated photoelectron signals are also shown in the same figure.…”