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

Mariangela Lisanti, Davide Iannuzzi, Federico Capasso

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

We have performed 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 direct evidence of the skin-depth effect on the Casimir force between metallic surfaces.

Original languageEnglish (US)
Pages (from-to)11989-11992
Number of pages4
JournalProceedings of the National Academy of Sciences of the United States of America
Volume102
Issue number34
DOIs
StatePublished - Aug 23 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General

Keywords

  • Casimir effect
  • Microelectromechanical systems
  • Vacuum fluctuations
  • Zero point energy

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