Over the last three decades, photonic crystals (PhCs) have attracted intense interests thanks
to their broad potential applications in optics and photonics. Generally, these structures can …

Polymer-based responsive structural color materials are polymers with ordered
microstructures that can change colors. They offer unique advantages and present a novel …

Counterfeiting is a growing global issue causing severe negative impacts on the social
economy and posing serious security threats to individuals and communities. However, the …

Stimulus-responsive photonic crystals (PCs) possessing unconventional nonclosely packed
structures have received growing attention due to their unique capability of mimicking the …

Various kinds of optical devices have been designed for unique functionality based on a
deeper understanding of optical principles. Recently, the research of functional optics has …

The counterfeiting of goods is growing worldwide, affecting practically any marketable item
ranging from consumer goods to human health. Anticounterfeiting is essential for …

Optical nanomaterials have been widely used in anticounterfeiting applications. There have
been significant developments powered by recent advances in material science, printing …

Although the encrypted anti‐counterfeiting technology based on infiltration‐controlled
photonic crystals has attracted widespread attention, the information has only hidden and …

Nature has developed high‐performance materials and structures over millions of years of
evolution and provides valuable sources of inspiration for the design of next‐generation …

Colloidal crystals and glasses have been designed to develop structural colors that are
tunable, iridescent, nonfading, and nontoxic. However, the low printability and poor printing …