Color evaluation of one-dimensional photonic crystal on the fabric

In this paper, the theory of 1-D photonic crystal was obtained and explained through the transfer matrix and plane wave method. Here the photonic crystal composed of SiO₂/TiO₂ thin film was assumed to be coated on fabric, the corresponding reflection and outer color can be calculated and found in the chromaticity diagram. Based on the numerical calculation of 1-D photonic crystal on fabric, if the thin film layer number varied, the reflection would change as well, and the color varied accordingly. For a certain layer number, the incident angle also influenced the observed color result. It illustrated that the constitution and observing angle of photonic crystal both influenced the structural color. The theoretical deduction and numerical calculation of photonic crystal on fabric would be very significant for designing our future structural color effect on textiles.