Spectral representation of the Casimir Force Between a Sphere and a Substrate

Abstract

We calculate the Casimir force in the non-retarded limit between a spherical nanoparticle and a substrate, and we found that high-multipolar contributions are very important when the sphere is very close to the substrate. We show that the highly inhomegenous electromagnetic field induced by the presence of the substrate, can enhance the Casimir force by orders of magnitude, compared with the classical dipolar approximation.

5 page + 4 figures. Submitted to Phys. Rev. Lett

References in corpus (4)

• Precision Measurement of the Casimir Force from 0.1 to 0.9 microns
• Measurement of the Casimir force between parallel metallic surfaces
• Improved Precision Measurement of the Casimir Force
• Casimir Force between a Dielectric Sphere and a Wall: A Model for Amplification of Vacuum Fluctuations

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• The Casimir force between dissimilar mirrors and the role of the surface plasmons