A model is presented to describe color effects based on interference on approximately periodic nano-structured surfaces. The model is verified qualitatively with optical color measurements on surface structured textile fibers, which show strong iridescent color effects. Good agreement can be found for the diffracted spectra as well as on images of diffraction patterns. Furthermore we show simulations and comparisons of the color appearance of bundles of parallel fibers. This model can be used as a base for simulating color effects in textile tissues, allowing a characterization and optimization in terms of fiber cross section, structure period and type for different lighting conditions.
Peter Zolliker, Safer Mourad, Wenjing Shi, Marcel Halbeisen, Hartmut Schmidt, "Modeling Interference Color on Surface Structured Fibers" in Proc. IS&T CGIV 2008/MCS'08 4th European Conf. on Colour in Graphics, Imaging, and Vision 10th Int'l Symp. on Multispectral Colour Science, 2008, pp 20 - 24, https://doi.org/10.2352/CGIV.2008.4.1.art00005