Long-term monitoring of the internal energy distribution of isolated cluster systems

A method is presented to monitor the internal energy distribution of cluster anions via delayed electron detachment by pulsed photoexcitation and demonstrated on Co\(_4{}^-\) in an electrostatic ion beam trap. In cryogenic operation, we calibrate the detachment delay to internal energy. By laser fre...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2018-05
Main Authors: Breitenfeldt, Christian, Blaum, Klaus, George, Sebastian, Göck, Jürgen, Guzmán-Ramírez, Gregorio, Karthein, Jonas, Kolling, Thomas, Lange, Michael, Menk, Sebastian, Meyer, Christian, Mohrbach, Jennifer, Niedner-Schatteburg, Gereon, Schwalm, Dirk, Schweikhard, Lutz, Wolf, Andreas
Format: Article
Language:English
Subjects:
Absorptivity
Clusters
Energy distribution
Internal energy
Ion beams
Ion sources
Ions
Photoexcitation
Thermal radiation
Time dependence
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A method is presented to monitor the internal energy distribution of cluster anions via delayed electron detachment by pulsed photoexcitation and demonstrated on Co\(_4{}^-\) in an electrostatic ion beam trap. In cryogenic operation, we calibrate the detachment delay to internal energy. By laser frequency scans, at room temperature, we reconstruct the time-dependent internal energy distribution of the clusters. The mean energies of ensembles from a cold and a hot ion source both approach thermal equilibrium. Our data yield a radiative emission law and the absorptivity of the cluster for thermal radiation.
ISSN:2331-8422
DOI:10.48550/arxiv.1805.11403