Agradecimentos: This work was supported by Ministério da Ciência, Tecnologia, Inovações e Comunicações, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Brasil, Finance Code 001, National Counsel of Technological and Scientific Development, and São Paulo Research Foundation (Fapesp) through Grants 2018/15580-6, 2018/15577-5, 2016/18308-0, 2012/17610-3, and 2012/17765-7. Part of the results presented in this work were obtained through Project 4716-11, funded by Samsung Eletrônica da Amazônia Ltda., under the Brazilian Informatics Law 8.248/91. The authors thank the Center for Semiconductor Components and Nanotechnologies for the nanofabrication infrastructure Ver menos

Abstract: The desire to reproduce vivid colors such as those found in birds, fishes, flowers, and insects has driven extensive research into nanostructured surfaces especially because of their high spatial resolution. Using a periodic silicon-patterned structure coated with aluminum, we combine two distinct and yet interconnected effects to produce bright and vivid color surfaces. A genetic algorithm optimization process was used to fine-tune both the diffraction and plasmonic effects to obtain reflective color filters for the red, green, and blue colors. The obtained structures are suitable for displays, image applications, color sensors, and optical filters Ver menos