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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 9 — Mar. 20, 2014
  • pp: 1820–1825

Spin-coating process evolution and reproducibility for power-law fluids

P. L. G. Jardim, A. F. Michels, and F. Horowitz  »View Author Affiliations


Applied Optics, Vol. 53, Issue 9, pp. 1820-1825 (2014)
http://dx.doi.org/10.1364/AO.53.001820


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Abstract

A distinct development of an exact analytical solution for power-law fluids during the spin-coating process is presented for temporal and spatial thickness evolution, after steady state conditions are attained. This solution leads to the definition of a characteristic time, related to the memory of the initial thickness profile. Previously obtained experimental data, for several rotation speeds and carboxymetilcellulose concentrations in water, are quantitatively analyzed through the evaluation of their characteristic times and compared with theoretical predictions, thus allowing better understanding of thickness profile evolution and of process reproducibility.

© 2014 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(160.5470) Materials : Polymers
(240.0310) Optics at surfaces : Thin films
(260.3160) Physical optics : Interference
(310.1620) Thin films : Interference coatings
(310.6860) Thin films : Thin films, optical properties

ToC Category:
Thin Films

History
Original Manuscript: November 12, 2013
Revised Manuscript: February 14, 2014
Manuscript Accepted: February 14, 2014
Published: March 19, 2014

Citation
P. L. G. Jardim, A. F. Michels, and F. Horowitz, "Spin-coating process evolution and reproducibility for power-law fluids," Appl. Opt. 53, 1820-1825 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-9-1820

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