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 …

Biological photonic crystal (PC) patterns provide unique functionalities for the survival of
creatures, such as the static identified patterns of butterfly wings, the mating function of the …

Development of advanced fluorescent materials for constructing a secure and unclonable
encryption is urgently required; however, their application in anti-counterfeiting applications …

Photonic crystals (PCs) with crack-free morphology, high-saturated structural color and
sensitivity to circumstances are expanding their applications in painting, sensor, optical …

The composite materials combining quantum dots (QDs) and photonic crystals (PCs) could
produce complex and high-dimensional anti-counterfeiting patterns, which solves the …

Photonic supraballs have been designed by evaporation-induced crystallization of colloidal
particles confined in emulsion droplets for various applications. However, it has been a …

Metal–organic framework (MOF)-directed photonic structure materials have inspired great
attention for extended and enhanced functions. However, the direct construction of photonic …

Optical micromanipulation has become popular for a wide range of applications. In this work,
a new type of optical micromanipulation platform, patterned optoelectronic tweezers (p …

Simple but efficient encryption of photonic crystals (PCs) with tunable optical properties is
highly desired for information encryption and anti-counterfeiting. Here, a transparent …