Gold dimer in neon: an absorption and fluorescence study
Institut de Physique des Nanostructures, EPFL, 1015 Lausanne, Switzerland
Corresponding author: a firstname.lastname@example.org
Published online: 24 January 2009
We report for the first time the absorption and fluorescence spectra of gold dimers in a neon matrix. The dimer absorption spectra show the A ← X transition predicted from measurements in the gas phase and not observed so far in a matrix, as well as the so-called B ← X and C ← X transitions. Fluorescence measurements on the atom reveal new emission lines at 1.97, 3.59 and 4.09 eV that can be assigned to the 2P1/2 → 2D3/2, 2P1/2 → 2D5/2 and the 2P3/2 → 2D5/2 transitions. For the dimer, excitation of both A and B state results in distinct emission spectra with vibrational structure.
PACS: 36.40.Vz – Optical properties of clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2009