9 September 1994 Angular selective window coatings
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Proceedings Volume 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII; (1994) https://doi.org/10.1117/12.185369
Event: Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII, 1994, Freiburg, Germany
Abstract
Thin films were deposited at an oblique angle of incidence by electron-beam evaporation as well as reactive and non-reactive sputtering. We have produced evaporated Cr films and sputtered metallic and partially oxidized films of Al, Cr and Ti. The optical transmittance of the films was measured as a function of the angle of incidence, and pronounced angular selectivity was found in many cases. The evaporated films show the highest angular selectivity in the luminous transmittance, but also some of the sputtered ones display promising optical properties. The optical properties of the sputtered films could be modeled with effective medium theories.
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G. W. Mbise, David Le Bellac, Gunnar A. Niklasson, Claes-Goeran Granqvist, "Angular selective window coatings", Proc. SPIE 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII, (9 September 1994); doi: 10.1117/12.185369; https://doi.org/10.1117/12.185369
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