Real-time interferometric analysis of spinning liquid films

Flavio Horowitz; A. Bacchieri; Alexandre F. Michels; Eric M. Yeatman; H. P. Grieneisen

doi:10.1117/12.245163

19 July 1996 Real-time interferometric analysis of spinning liquid films

Flavio Horowitz, A. Bacchieri, Alexandre F. Michels, Eric M. Yeatman, H. P. Grieneisen

Proceedings Volume 2861, Laser Interferometry VIII: Applications; (1996) https://doi.org/10.1117/12.245163
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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.

Citation Download Citation

Flavio Horowitz, A. Bacchieri, Alexandre F. Michels, Eric M. Yeatman, and H. P. Grieneisen "Real-time interferometric analysis of spinning liquid films", Proc. SPIE 2861, Laser Interferometry VIII: Applications, (19 July 1996); https://doi.org/10.1117/12.245163

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