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Observation of the skin-depth effect on the Casimir force between metallic surfaces

Mariangela Lisanti·Davide Iannuzzi·Federico Capasso
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Abstract

We have performed comparative measurements of the Casimir force between a metallic plate and a transparent sphere coated with metallic films of different thicknesses. We have observed that, if the thickness of the coating is less than the skin-depth of the electromagnetic modes that mostly contribute to the interaction, the force is significantly smaller than that measured with a thick bulk-like film. Our results provide the first direct evidence of the skin-depth effect on the Casimir force between metallic surfaces.

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Mariangela Lisanti, Davide Iannuzzi, Federico Capasso. 2005-02-20. Observation of the skin-depth effect on the Casimir force between metallic surfaces. https://doi.org/10.1073/pnas.0505614102

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