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Proceedings Paper

Real-time interferometric analysis of spinning liquid films
Author(s): Flavio Horowitz; A. Bacchieri; Alexandre F. Michels; Eric M. Yeatman; H. P. Grieneisen
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Paper Abstract

Optical interferometric monitoring of spin coating (optospinography) has allowed close observation of a thin liquid film temporal evolution (at 500 -2500 rpm, 100 Hz data acquisition), from which its kinematic viscosity can be determined. The data obtained from this procedure is in good agreement with known values for two oil standards, indicating that the method is valid in the range of approx. 0.4 to 150 Stokes. Advantages and limitations are discussed.

Paper Details

Date Published: 19 July 1996
PDF: 4 pages
Proc. SPIE 2861, Laser Interferometry VIII: Applications, (19 July 1996); doi: 10.1117/12.245163
Show Author Affiliations
Flavio Horowitz, Instituto de Fisica (Brazil)
A. Bacchieri, Instituto de Fisica (Brazil)
Alexandre F. Michels, Instituto de Fisica (Brazil)
Eric M. Yeatman, Imperial College of Science, Technology and Medicine (United Kingdom)
H. P. Grieneisen, Instituto de Fisica (Brazil)


Published in SPIE Proceedings Vol. 2861:
Laser Interferometry VIII: Applications
Ryszard J. Pryputniewicz; Gordon M. Brown; Werner P. O. Jueptner, Editor(s)

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