The van der Waals potential between metastable atoms and solid surfaces: Novel diffraction experiments vs. theory
Max-Planck-Institut für Strömungsforschung
Bunsenstr. 10, 37073 Göttingen, Germany
2 Institut für Theoretische Physik, Universität Göttingen Bunsenstr. 9, 37073 Göttingen, Germany
Accepted: 13 May 2002
Highly polarizable metastable and atoms have been diffracted from a 100 period silicon nitride transmission grating and the van der Waals coefficients C3 for the interaction of the excited atoms with the silicon nitride surface have been determined from the diffraction intensities out to the 10th order. The results agree with calculations based on the non-retarded Lifshitz formula.
PACS: 34.50.Dy – Interactions of atoms and molecules with surfaces; photon and electron emission; neutralization of ions / 03.75.Be – Atom and neutron optics
© EDP Sciences, 2002