6533b854fe1ef96bd12af202
RESEARCH PRODUCT
Radiative Cooling of a Small Metal Cluster: The Case ofV13+
K. LützenkirchenLutz SchweikhardKlavs HansenClemens WaltherW. DostalS. KrückebergG. Dietrichsubject
PhotoexcitationPhysicsRadiative coolingAtomPhotodissociationInverse photoemission spectroscopyCluster (physics)General Physics and AstronomyAtomic physicsExcitationIondescription
Size-selected stored metal cluster ions, ${\mathrm{V}}_{13}^{+}$, have been heated by photoexcitation ( $\ensuremath{\lambda}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}730$ to 229 nm) to well-defined excitation energies corresponding to temperatures between 1000 and 2100 K. A millisecond pump-probe photodissociation technique was applied to measure the time-resolved radiative cooling. The observed decay rates are directly related to the radiative energy loss and are explained quantitatively by the competing processes of photoemission and atom evaporation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-11-08 | Physical Review Letters |