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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 28 — Oct. 1, 2008
  • pp: 5208–5220

Estimation of the thickness and the optical parameters of several stacked thin films using optimization

Ricardo Andrade, Ernesto G. Birgin, Ivan Chambouleyron, José Mario Martínez, and Sergio D. Ventura  »View Author Affiliations


Applied Optics, Vol. 47, Issue 28, pp. 5208-5220 (2008)
http://dx.doi.org/10.1364/AO.47.005208


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Abstract

The reverse engineering problem addressed in the present research consists of estimating the thicknesses and the optical constants of two thin films deposited on a transparent substrate using only transmittance data through the whole stack. No functional dispersion relation assumptions are made on the complex refractive index. Instead, minimal physical constraints are employed, as in previous works of some of the authors where only one film was considered in the retrieval algorithm. To our knowledge this is the first report on the retrieval of the optical constants and the thickness of multiple film structures using only transmittance data that does not make use of dispersion relations. The same methodology may be used if the available data correspond to normal reflectance. The software used in this work is freely available through the PUMA Project web page (http://www.ime.usp.br/~egbirgin/puma/).

© 2008 Optical Society of America

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(310.0310) Thin films : Thin films

ToC Category:
Thin Films

History
Original Manuscript: August 8, 2008
Manuscript Accepted: August 21, 2008
Published: September 30, 2008

Citation
Ricardo Andrade, Ernesto G. Birgin, Ivan Chambouleyron, José Mario Martínez, and Sergio D. Ventura, "Estimation of the thickness and the optical parameters of several stacked thin films using optimization," Appl. Opt. 47, 5208-5220 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-28-5208

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