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Proceedings Paper

Tin depth profile in surface layers of a float glass
Author(s): Bernard Dugnoille; I. Rase; O. Virlet
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Paper Abstract

Window glass is principally produced by the float technique which causes tin diffusion into glass creating a layer on each face. The complex refractive index (NF) of each face is slightly different from that found in the bulk of the glass (NS) and asymptotically approaches this value. The depth profile of the complex refractive index of each layer may be determined by means of multiangle ellipsometric measurements and the reflectance formula. By assuming glass as the matrix and tin as inclusions, the effective medium theory allows to determine the refractive index of this medium as a function of tin volume fraction. Knowing this evolution and the one of the layer refractive index as a function of depth, the tin volume fraction profile in the glass substrate is obtained.

Paper Details

Date Published: 4 November 1994
PDF: 10 pages
Proc. SPIE 2253, Optical Interference Coatings, (4 November 1994); doi: 10.1117/12.192072
Show Author Affiliations
Bernard Dugnoille, Faculte Polytechnique de Mons (Belgium)
I. Rase, Faculte Polytechnique de Mons (Belgium)
O. Virlet, Faculte Polytechnique de Mons (Belgium)

Published in SPIE Proceedings Vol. 2253:
Optical Interference Coatings
Florin Abeles, Editor(s)

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