A(2)Bil(5)O(15) (A = K+ or Rb+): two new promising nonlinear optical materials containing [I3O9](3-) bridging anionic groups

作者：Huang, Yin; Meng, Xianggao; Gong, Pifu; Yang, Lei; Lin, Zheshuai; Chen, Xingguo; Qin, Jingui^*

来源：Journal of Materials Chemistry C, 2014, 2(20): 4057-4062.

DOI：10.1039/c4tc00264d

• LARGE SHG RESPONSE
• INDUCED DAMAGE THRESHOLDS
• POLAR MATERIAL
• METAL IODATES
• PSEUDOPOTENTIALS
• BETA-BAB2O4
• CRYSTAL
• CS

Two new alkali metal bismuth iodates, K(2)Bil(5)O(15) and Rb(2)Bil(5)O(15), have been synthesized by a hydrothermal method. They are isostructural with the same noncentrosymmetric (NCS) orthorhombic space group Abm2 and contain a unique [I3O9](3)-bridging anionic group. Their powders showed phase-matchable second-harmonic generation (SHG) effects 3 times that of KH2PO4 (KDP) and the laser-induced damage threshold values of 84 and 72 MW cm(-2), respectively. They also exhibit a wide transparent range (up to 12 mu m) and good thermal stability (450 degrees C).

• 出版日期2014
• 单位中国科学院理化技术研究所; 武汉大学; 华中师范大学