Abstract
Energetic ion species desorption from Al(200nm)/sapphire, Ag(10nm)/Al(200nm)/sapphire and Al(111) targets has been measured tor 244 and 320 nm laser irradiation. The product kinetic energy distribution (KED) for samples irradiated with 244 nm light, for Ag+ and the impurity species K+ resemble the KED of Al+ desorbed from Al(111) and Al/sapphire (< KE > ≈3–4 eV). However, for resonance excitation (320 nm) of the Ag adlayer, all product KEDs shift to lower energy (< KE > ≤1 eV). These results imply that the excitation which leads to ion KE is not due to a local excitation process.
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© 1993 Springer-Verlag Berlin Heidelberg
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Kim, HS., Wiedeman, L., Helvajian, H. (1993). UV Pulsed Laser Desorption from Ag/Al/Sapphire Films: Changes in the Ion Desorption Process for Excitations near the Ag d-Band Threshold. In: Burns, A.R., Stechel, E.B., Jennison, D.R. (eds) Desorption Induced by Electronic Transitions DIET V. Springer Series in Surface Sciences, vol 31. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-78080-6_15
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DOI: https://doi.org/10.1007/978-3-642-78080-6_15
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