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5 October 2005 Design of hybrid coatings composed of homogeneous layers and refractive index gradients
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Abstract
Inhomogeneous coatings are promising for superior optical properties, e.g. broadband antireflection, in comparison to conventional HL-stack designs. Although a lot of excellent theoretical work on optical behaviour of rugates and gradient index films has been done during the last decades, there is no real breakthrough in industrial fabrication. The realization of such coatings leads to an extensive and time-consuming computer-aided control, because of complicated layer designs with continuously changing refractive index gradients. We describe the design and optical performance of an omnidirectional antireflection coating that essentially represents a hybrid coating composed from homogeneous layers and linear refractive index gradient layers.
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Vesna Janicki, Robert Leitel, Steffen Wilbrandt, Olaf Stenzel, Dieter Gäbler, and Norbert Kaiser "Design of hybrid coatings composed of homogeneous layers and refractive index gradients", Proc. SPIE 5963, Advances in Optical Thin Films II, 59631D (5 October 2005); https://doi.org/10.1117/12.624348
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