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Updated: Jun 13, 2026

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
Published on: January 26, 2016
Refractive index as a variable in the numerical design of optical thin film systems
Abstract:
The role of the refractive index in the design of optical multilayer coatings is discussed. The theory of the Herpin equivalent-index concept is reviewed. New results are presented for an extension of this concept first proposed by Ikeda. A computer program is described which automatically transforms a multilayer design utilizing many refractive indices into a system based on the use of two materials only. Experimental results are given to illustrate this. It is shown how, by the use of Herpin equivalent indices, computation time during thin film synthesis can be drastically reduced.
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