Two-photon resonant excitation of interatomic coulombic decay in neon dimers

The recent availability of intense and ultrashort extreme ultraviolet sources opens up the possibility of investigating ultrafast electronic relaxation processes in matter in an unprecedented regime. In this work we report on the observation of two-photon excitation of interatomic Coulombic decay (I...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2015-10, Vol.48 (20), p.204005-204012
Main Authors: Dubrouil, A, Reduzzi, M, Devetta, M, Feng, C, Hummert, J, Finetti, P, Plekan, O, Grazioli, C, Fraia, M Di, Lyamayev, V, Forge, A La, Katzy, R, Stienkemeier, F, Ovcharenko, Y, Coreno, M, Berrah, N, Motomura, K, Mondal, S, Ueda, K, Prince, K C, Callegari, C, Kuleff, A I, Demekhin, Ph V, Sansone, G
Format: Article
Language:English
Subjects:
Decay
Dimers
Electronics
Excitation
interatomic coulombic decay
Ionization
Neon
nonlinear interaction in the extreme ultraviolet
Signatures
ultrafast dynamics
Ultraviolet
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The recent availability of intense and ultrashort extreme ultraviolet sources opens up the possibility of investigating ultrafast electronic relaxation processes in matter in an unprecedented regime. In this work we report on the observation of two-photon excitation of interatomic Coulombic decay (ICD) in neon dimers using the tunable intense pulses delivered by the free electron laser FERMI. The unique characteristics of FERMI (narrow bandwidth, spectral stability, and tunability) allow one to resonantly excite specific ionization pathways and to observe a clear signature of the ICD mechanism in the ratio of the ion yield created by Coulomb explosion. The present experimental results are explained by ab initio electronic structure and nuclear dynamics calculations.
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/48/20/204005