Recent Advances in Nonlinear Optical Phosphate Materials

摘要

In recent years,motivated by the discovery of deep-UV (wavelengths below 200 nm) nonlinear optical (NLO) phosphates,Ba3P3O10X (Cl,Br),phosphates have entered into a passionate research era.In this review,recently discovered phosphate materials containing different anionic groups,i.e.,isolated [PO4],[P2O7] dimer,[P3O10] trimer,and [PO3]∞ chain,are summarized,including their syntheses,structures,NLO performances and properties.Especially phosphates with short absorption edges in the deep-UV region and good SHG efficiency are introduced in detail.We hope that this work will present a clear view of the crystal chemistry of phosphates and promote the discovery of new high-performing second-order NLO materials to meet the urgent needs in laser science.