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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 29, Iss. 22 — Aug. 1, 1990
  • pp: 3207–3212

Determination of optical constants of thin film from reflectance spectra

G. Lévêque and Y. Villachon-Renard  »View Author Affiliations


Applied Optics, Vol. 29, Issue 22, pp. 3207-3212 (1990)
http://dx.doi.org/10.1364/AO.29.003207


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Abstract

We present a method of determining optical constants n and k of a thin film using only the reflectance R(ω) curve (normal incidence reflectance spectroscopy). The method is based on the simultaneous use of Fresnel laws and dispersion relations between n and k of the film, via an iterative process. To illustrate the method, optical constants in the VUV of a film grown on InP were determined. A second example with a SnO2 film shows how the method can reduce the effect of experimental errors when two sets of spectroscopic data are available.

© 1990 Optical Society of America

History
Original Manuscript: May 12, 1989
Published: August 1, 1990

Citation
G. Lévêque and Y. Villachon-Renard, "Determination of optical constants of thin film from reflectance spectra," Appl. Opt. 29, 3207-3212 (1990)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-29-22-3207


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