Coherent wave packet dynamics in photo-excited Nal

T Leitner,H O Karlsson,A Luebcke,M Odelius,P Johnsson,Ph Wernet,F Buchner,A Rouzée,L Rading,M Vrakking,M Chergui,R De Vivie-Riedle,S Cundiff,A Taylor,K Yamagouchi

doi:10.1051/epjconf/20134102027

Abstract

Time and energy resolved photoelectron distributions of photo-excited Nal are presented. A splitting in the photo-excited state suggested by calculations of the intramolecular potential energy surfaces could be confirmed experimentally for the first time.

Highlights

In the past decades, femtochemistry has made remarkable progress and intensive research is going on the investigation of dynamic processes in molecules on the femtosecond time-scale
In 1988 the group of Zewail pioneered this progress by performing extensive studies on the the temporal evolution of molecular wave packets in photo-excited NaI using femtosecond transition state spectroscopy (FTS) [1,2]
These studies have enabled the characterization of the potential energy surfaces of the excited state and the unbound states, as well as the characterization of wave packet oscillations happening in excited NaI molecule, due to an intersection of the first excited state A and the ground state X forming an effective trapping potential

Summary

Introduction

Femtochemistry has made remarkable progress and intensive research is going on the investigation of dynamic processes in molecules on the femtosecond time-scale. Time and energy resolved photoelectron distributions of photo-excited NaI are presented. A splitting in the photo-excited state suggested by calculations of the intramolecular potential energy surfaces could be confirmed experimentally for the first time.

Results

Conclusion