3D Imprinting of Voxel‐Level Structural Colors in Lithium Niobate Crystal (Adv. Mater. 47/2023)

3D Structural Coloration Advanced coloration methods are of pivotal importance in science, technology, and engineering. In article number 2303256 by Bo Zhang, Dezhi Tan, Jianrong Qiu, and co-workers report the achievement of an unprecedented facile voxel-level programmable 3D structural coloration in bulk lithium niobate crystals. Micro/nano-scale color voxels can be quickly inscribed into any spatial position of the matrix in one step. This principle is anticipated to boost the applications of structural coloration in 3D displays, encryption, anti-counterfeiting, and data storage.