Frequency-dependent Drude damping in Casimir force calculations

Abstract

The Casimir force is calculated between Au thin films that are described by a Drude model with a frequency dependent damping function. The model parameters are obtained from available experimental data for Au thin films. Two cases are considered; annealed and nonannealed films that have a different damping function. Compared with the calculations using a Drude model with a constant damping parameter, we observe changes in the Casimir force of a few percent. This behavior is only observed in films of no more than 300 $\mathring{A}$ thick.

Proceedings of the meeting "60 years of Casimir effect", Brasilia, 2008

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