Casimir and van der Waals forces between two plates or a sphere (lens) above a plate made of real metals

By Galina L. Klimchitskaya, Umar Mohideen, Vladimir M. Mostepanenko. 2000

148 citations recorded by the source corpus.

The Casimir and van der Waals forces acting between two metallic plates or a sphere (lens) above a plate are calculated, accounting for the finite conductivity of the metals. A simple formalism of surface modes is briefly presented which makes it possible to obtain a generalization of the Lifshitz results for the case of two semispaces covered by thin layers. Additional clarification of the regularization procedure provides the means to obtain reliable results not only for the force but also for the energy density. This, in turn, leads to the value of the force for the configuration of a sphere (lens) above a plate, both of which are covered by additional layers. The Casimir interaction between Al and Au test bodies is recalculated using tabulated optical data for the complex refractive index of these metals. The computations turn out to be in agreement with perturbation theory up to fourth order in the relative penetration depth of electromagnetic zero-point oscillations into the metal. The disagreements between the results recently presented in the literature are resolved. The Casimir force between Al bodies covered by thin Au layers is computed, and the possibility of neglecting spatial dispersion effects is discussed as a function of the layer thickness. The van der Waals force is calculated including the transition region to the Casimir force. The pure nonretarded van der Waals force law between Al and Au bodies is shown to be restricted to a very narrow distance interval from 0.5 nm to (2\char21{}4) nm. More exact values of the Hamaker constant for Al and Au are determined.

Subfields: Atomic and Molecular Physics, and Optics, Civil and Structural Engineering, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/ecbe7ec7516a162397a68869bdb6c86d0d408153

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Citations in the corpus

REDUCED-ORDER MODELS FOR MICROELECTROMECHANICAL RECTANGULAR AND CIRCULAR PLATES INCORPORATING THE CASIMIR FORCE (2008, methodology): “These devices are used in signal filtering, and chemical and mass sensing, see for example AbdelRahman et al. (2002), Nayfeh and Younis (2005), Rhoads et al. (2006), Tilmans and Legtenberg (1994b), Younis and Nayfeh (2003), Krylov and Maimon (2004), Kuang and Chen (2004), Xie et al. (2003).”
Materials perspective on Casimir and van der Waals interactions (2015, methodology): “Beyond special–symmetry structures where the Green’s functions can be expanded in a convenient spectral basis (Jaekel and Reynaud, 1991; Klimchitskaya et al., 2000; Tomaš, 2002; Zhou and Spruch, 1995), recent implementations of the stress-tensor method for arbitrary geometries exploit…”
The Casimir force between real materials: Experiment and theory (2009, methodology): “Genet, C., A. Lambrecht, and S. Reynaud, 2000, Phys.”
The Casimir effect in microstructured geometries (2011, unknown): “and eventually to arbitrary multilayer-film geometries (where the Casimir force can be related to the classical reflection spectrum”