The Casimir free energy for 2d gratings separated by a vacuum slit is expressed in terms of Rayleigh coefficients, a novel general approach valid for arbitrary 2d surface profiles of gratings is outlined. The normal Casimir force in the system of two identical Si gratings with 2d sinusoidal surface profiles separated by a vacuum slit is computed for several amplitudes of surface profiles, distance dependence of the force is studied. A comparison with results for flat boundaries is performed.

Original languageEnglish
Article number05024
JournalEPJ Web of Conferences
Volume125
DOIs
StatePublished - 28 Oct 2016
Event19th International Seminar on High Energy Physics, QUARKS 2016 - Pushkin, Saint-Petersburg, Russian Federation
Duration: 29 May 20164 Jun 2016

    Scopus subject areas

  • Physics and Astronomy(all)

ID: 36299119