Parameters for optimization of multilayer antireflection coatings

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Abstract
The model of all-dielectric Fabry-Perot interference filters having two partial reflectors and a spacing layer used for multilayer antireflection coatings is shown to have two free parameters which can be used for optimization. The first parameter is the polar angle on the iso-reflectance circle in the plane of the real and imaginary parts of the admittance of one of the partial reflectors. The second parameter is the optical thickness of the spacing layer in the Fabry-Perot model. The optimization procedure is presented and applied. Typical examples are given and discussed.

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