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The Casimir force on a surface with shallow nanoscale corrugations: Geometry and finite conductivity effects
- Source :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2010, 105, pp.250402. ⟨10.1103/PhysRevLett.105.250402⟩, Physical Review Letters, 2010, 105, pp.250402. ⟨10.1103/PhysRevLett.105.250402⟩
- Publication Year :
- 2010
- Publisher :
- HAL CCSD, 2010.
-
Abstract
- International audience; We measure the Casimir force between a gold sphere and a silicon plate with nanoscale, rectangular corrugations with depth comparable to the separation between the surfaces. In the proximity force approximation (PFA), both the top and bottom surfaces of the corrugations contribute to the force, leading to a distance dependence that is distinct from a flat surface. The measured Casimir force is found to deviate from the PFA by up to 15%, in good agreement with calculations based on scattering theory that includes both geometry effects and the optical properties of the material.
- Subjects :
- Physics
Surface (mathematics)
Quantum Physics
Nanostructure
Silicon
010308 nuclear & particles physics
Scattering
General Physics and Astronomy
chemistry.chemical_element
FOS: Physical sciences
Geometry
01 natural sciences
Semimetal
Casimir effect
chemistry
[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]
0103 physical sciences
Scattering theory
010306 general physics
Quantum Physics (quant-ph)
Nanoscopic scale
Subjects
Details
- Language :
- English
- ISSN :
- 00319007 and 10797114
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2010, 105, pp.250402. ⟨10.1103/PhysRevLett.105.250402⟩, Physical Review Letters, 2010, 105, pp.250402. ⟨10.1103/PhysRevLett.105.250402⟩
- Accession number :
- edsair.doi.dedup.....a91e4afc92724ce308965bdcc54cb2b2