The commercialization of the lithium niobate on insulator provides beginning to the emergence of high-quality lithium niobate photonic crystals. In an effort to present steerage towards the investigation of lithium niobate photonic crystal units, recent development about fabrication, characterization, and purposes of the thin-movie lithium niobate photonic crystal is reviewed. https://douglasd566cph5.buyoutblog.com/profile