Abstract

The relationship between the incidence angle of a p-polarized beam and the reflectance ratio on both sides of glass or other transparent material is very sensitive to surface layer parameters such as refractive index, extinction coefficient, and thickness, especially when the refractive indexes of the surface layers and the flat host are nearly the same. We provide some primary experimental results and the numerical simulation on the basis of the theory of thin-film optics. By data fitting, we determine the parameters of the glass surface layer with this method, which has the advantages of simplicity of both equipment and understanding.

© 1997 Optical Society of America

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