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Proceedings Paper

Scattering of electronically excited sulphur dioxide from graphite
Author(s): Franz Kaspar; Karl Ludwig Kompa; Christoph Mueller; Hartmut Schroeder
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Paper Abstract

So2 molecules in a He-seeded molecular beam were electronically excited with a XeC1 excimer laser and scattered from the basal plane of graphite in an UHV chamber. Their characteristic scattering features were measured by counting those molecules which radiate after scattering. The survival probability of SO2 scattered from graphite is 2.5 * lO-. This implies that the probability of detecting excited molecules which have collided twice on the surface is already negligible. In this favourable case, the dynamics of scattering can be described with a hard cube model. The parallel component of the momentum is conserved, whereas the perpendicular component in our case is reduced to almost half of its initial value.

Paper Details

Date Published: 1 August 1990
PDF: 12 pages
Proc. SPIE 1279, Laser-Assisted Processing II, (1 August 1990); doi: 10.1117/12.20616
Show Author Affiliations
Franz Kaspar, Max-Planck-Institut fuer Quant (Germany)
Karl Ludwig Kompa, Max-Planck-Institut fuer Quantenoptik (Germany)
Christoph Mueller, Max-Planck-Institut fuer Quantenoptik (Germany)
Hartmut Schroeder, Max-Planck-Institut fuer Quantenoptik (Germany)


Published in SPIE Proceedings Vol. 1279:
Laser-Assisted Processing II
Lucien Diego Laude, Editor(s)

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