随着激光武器技术的深入发展，防御激光损伤及激光主动探测的需求愈发凸显。基于过渡金属有机配合物的光限幅功能材料因其优异的反饱和吸收性能，在激光防护领域具有重要的研究价值和广阔的应用前景。本申请项目基于光限幅功能导向，设计合成系列新型双三齿配体Ir(III)配合物，系统研究其光物理性质，阐明双三齿配体Ir(III)配合物结构与其光学性质之间的构效关系，揭示此类材料光限幅性能的内在规律。在得到具有宽幅、长寿命、强反饱和吸收性能的Ir(III)配合物的同时，进一步优化材料性能，并指导新材料的设计开发。在此基础上，将高性能的光限幅材料用于构筑杂化复合材料体系，将材料加工成型，得到性能优良的光学功能薄膜与器件，探索此类新型光限幅材料器件在激光损伤防护、防御激光主动探测等领域的实际应用。

With the increasing development of laser weapon technique, the defense of laser damage and laser detection becomes more and more crucial. Optical limiting functional materials based on the transition metal organic complexes exhibit significant research value and broad application prospects in the field of laser protection by virtue of their excellent reverse saturable saturated absorption properties. This project proposal is based on the optical limiting function-orientation. Series of novel Ir(III) complexes with bis-tridentate chelating architecture will be designed and synthesized. Their photophysical properties will be systematically investigated with the aim of developing new reverse saturable absorbers with broad band absorption, long lifetime and strong reverse saturable absorption. The structure–property correlations between the Ir(III) complexes with bis-tridentate ligands and their optical properties will be investigated and discussed, while the inherent laws of these optical limiting materials will be revealed. The nonlinear optical properties of the new materials will be further improved by the guidance of these design conceptions. Based on that, the Ir(III) complexes with good optical limiting properties will be selected for building complex hybrid composite material system. The optical devices will be fabricated with a view of developing new type of optical limiting materials and devices for practical applications in laser damage defense, laser detection protection and other fields.