Preparation and Applications of Photonic Crystal Structural Color Fibers

Photonic crystal fibers are fibers that are made up of photonic crystals and have bright structural colors. Their unique structural color is conducive to the green transformation of the textile dyeing and finishing industry, and some photonic crystal fibers can also show color-changing characteristics according to changes in process, material and external environment, which can play a significant role in smart wear. In this paper, the preparation methods of photonic crystal fibers with different structures are introduced, and their applications in the fields of textiles, sensing and anti-counterfeiting are introduced. The future development direction and prospects are predicted, which are of great significance for the development of preparation methods and potential applications of photonic crystal fibers.