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Phys. Rev. Lett. 81, 4549–4552 (1998)

Precision Measurement of the Casimir Force from 0.1 to 0.9μm

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U. Mohideen* and Anushree Roy
Department of Physics, University of California, Riverside, California 92521

Received 8 May 1998; revised 5 October 1998; published in the issue dated 23 November 1998

See accompanying Physics Focus

We have used an atomic force microscope to make precision measurements of the Casimir force between a metallized sphere of diameter 196 μm and flat plate. The force was measured for plate-sphere surface separations from 0.1 to 0.9 μm. The experimental results are consistent with present theoretical calculations including the finite conductivity, roughness, and temperature corrections. The root mean square average deviation of 1.6 pN between theory and experiment corresponds to a 1% deviation at the smallest separation.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.81.4549
DOI:
10.1103/PhysRevLett.81.4549
PACS:
12.20.Fv, 42.50.Lc, 61.16.Ch

*Author to whom correspondence should be addressed. Email address: umar.mohideen@ucr.edu

See Also

Comment: S. K. Lamoreaux, Comment on “Precision Measurement of the Casimir Force from 0.1 to 0.9 μm”, Phys. Rev. Lett. 83, 3340 (1999).

Reply: U. Mohideen and A. Roy, Mohideen and Roy Reply:, Phys. Rev. Lett. 83, 3341 (1999).

 
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