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Phys. Rev. A 62, 062104 (2000) [8 pages]

Template-stripped gold surfaces with 0.4-nm rms roughness suitable for force measurements: Application to the Casimir force in the 20–100-nm range

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Thomas Ederth*
Department of Chemistry, Surface Chemistry, Royal Institute of Technology, SE-100 44 Stockholm, Sweden
Institute for Surface Chemistry, Box 5607, SE-114 86 Stockholm, Sweden

Received 6 June 2000; published 14 November 2000

Using a template-stripping method, macroscopic gold surfaces with root-mean-square roughness <~0.4 nm have been prepared, making them useful for studies of surface interactions in the nanometer range. The utility of such substrates is demonstrated by measurements of the Casimir force at surface separations between 20 and 100 nm, resulting in good agreement with theory. The significance and quantification of this agreement are addressed, as well as some methodological aspects regarding the measurement of the Casimir force with high accuracy.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.62.062104
DOI:
10.1103/PhysRevA.62.062104
PACS:
12.20.Fv, 06.60.Ei

*Present address: Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, United Kingdom. Email address: ederth@physchem.ox.ac.uk.

 
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