Color effects in optical spectroscopy

Abstract

The main aim of this bachelor thesis is to calculate colors from measured and modeled optical spectra. For describing a color in details, the color spaces CIE XYZ, RGB are selected. The main optical principles of the atmospheric optics and some optical phenomena are described, including the Aurora Borealis (Northern lights) chromaticity coordinates of which are calculated. The color effects by reflection of thin films are shown as well. A thin film spectra modeling is based on the electromagnetic optics, matrix description of thin films and optical constants of a given material. Measured spectra are obtained from the Woollam RC2 ellipsometer. The calculated trichromatic coordinates are obtained from experimentally measured and modeled spectra on thermally grown SiO2 films on silicon wafers.