Photon stimulated desorption from mixed layers of rare gas solids using a laser plasma light source

Abstract

This paper describes the photon stimulated desorption (PSD) apparatus using a laser plasma light source which we have developed, and the results of PSD experiments on rare gas solids. In order to reveal the mechanism of the desorption from two-component systems, we have investigated PSD of metastable atoms from Ne solid films on which 0.2-200 Ar layers were deposited. We have found that both the desorption yield and the kinetic energy of desorbed Ne metastables strongly depend on an Ar thickness. These results suggest that the deposition of Ar atoms leads to the formation of Ar-Ne mixed layers and the change in the cohesive energy of the sample solids.