Metadata only entryEnergy relaxation processes of photoexcited ArM clusters (M < 50) covered with a shell of Kr atoms (up to 30 atoms) which are embedded in large NeN clusters (N = 3500) are investigated with energy-resolved fluorescence spectroscopy. In the energy range of the Ne cluster absorption (16.5–18 eV) a strong energy transfer to the embedded Ar subcluster is observed, which results in desorption of electronically excited Ar* atoms. Ar* move through the Ne cluster, desorb and emit visible and near-infrared light in the vacuum (4p → 4s). By coating the Ar clusters with Kr atoms, the Ar lines disappear and 5p → 5s transitions of Kr become dominant. Additionally, new bands occur, which are assigned to transitions of perturbed atomic Ar 4p states inside Ne clusters. A simple kinematic model is suggested to describe the suppression of desorption of excited Ar atoms from Ne clusters
To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.