Abstract
The attenuated total reflection changes induced by a submonolayer of caesium on silver are precisely analysed in the framework of the semiclassical anomalous skin effect theory. It is shown that the variations observed in the clean film reflectance may be attributed partially to a decrease in the Fuchs specularity parameter at the perturbed surface. The superficial dipolar layer absorption contribution is, however, predominant, and is about three times greater than that from the Fuchs specularity parameter.This work confirms that the anomalous skin effect and surface polarization corrections cannot be ignored when an accurate determination of the bulk optical constants is desired.
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