Research Progress on Optical Limiting Performance of Near-Infrared Laser Protective Materials

With the advancement of near-infrared laser technology, there is a significantly increased possibility of exposure of the human eye and optical devices to intense laser conditions. Consequently, research on protection against near-infrared lasers is becoming increasingly prevalent. This review has provided an overview of the recent advancements in the field of nonlinear optical materials, focusing on materials such as graphene, carbon nanotubes, inorganic metal clusters, transition metal sulfides, perovskites and copper niobate. These materials exhibit promising performance in near-infrared optical limiting applications, showcasing good broadband capabilities, but still face urgent issues in terms of structural control, performance regulation, high-purity preparation, and device applications.