15–17 Sept 2014
Paul Scherrer Institute
Europe/Zurich timezone

Soft X-ray ionisation of atoms within TDDFT and nuclear effects on the attosecond TRPES of ethylene

16 Sept 2014, 14:35
25m
WHGA/001 (Paul Scherrer Institute)

WHGA/001

Paul Scherrer Institute

5232 Villigen PSI
Contributed Talk Theory Theory

Speaker

Mrs Alison Crawford (Nano Bio Spectroscopy Group, UPV/EHU)

Description

First, I will demonstrate the capabilities of time-dependent density functional theory (TDDFT) for strong-field, short wavelength (soft X-ray) physics, as compared to a formalism based on rate equations. TDDFT provides a very good description of the total and individual ionization yields for Ne and Ar atoms exposed to strong laser pulses over a wide range of intensities. Second, using TDDFT we examine the energy, angular and time-resolved photoelectron spectra (TRPES) of ethylene in a pump-probe setup. Studying the photoemission spectra provides us direct access to the dynamic evolution of the molecule’s electronic levels. Further, by including the nuclei's motion, we provide direct chemical insight into the chemical reactivity of ethylene.

Primary author

Mrs Alison Crawford (Nano Bio Spectroscopy Group, UPV/EHU)

Presentation materials