Pulsed laser desorption of alkali atoms from PDMS thin films

The dynamics of short pulsed laser-induced desorption of alkali atoms from poly-dimethylsiloxane (PDMS) coated glass prism surfaces is investigated. Kinetic energies of desorbing sodium atoms of several hundred meV are found, increasing with increasing laser fluence. Evanescent wave measurements sug...

Full description

Saved in:
Bibliographic Details
Published in:Applied surface science 2004-04, Vol.228 (1), p.40-47
Main Authors: Brewer, J., Burchianti, A., Marinelli, C., Mariotti, E., Moi, L., Rubahn, K., Rubahn, H.-G.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
LIAD
PDMS thin films
Physics
pulsed laser desorption
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The dynamics of short pulsed laser-induced desorption of alkali atoms from poly-dimethylsiloxane (PDMS) coated glass prism surfaces is investigated. Kinetic energies of desorbing sodium atoms of several hundred meV are found, increasing with increasing laser fluence. Evanescent wave measurements suggest that the desorbed atoms stem from a subsurface layer of the PDMS film, resulting in diffusional characteristics for the total yield of the desorption process.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2003.12.024