Single crystals of Ba3B6O11F2 have been synthesized by introducing the F- anion into the BaO-B 2O3 system and the structure was determined by single-crystal X-ray diffraction. It crystallizes in the non-centrosymmetric space group P21 (no. 4). In the structure, a new fundamental building block, the B6O14 group, was observed. The second harmonic generation (SHG) measurement shows that Ba3B6O 11F2 possesses a large SHG response about three times that of KH2PO4 (KDP) and is phase-matchable. In addition, it exhibits a wide transparency range with a short UV cut-off edge (<190 nm), which suggests that the material is a potential deep UV nonlinear optical material.
Chinese Acad Sci, Xinjiang Key Lab Elect Informat Mat & Devices, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Yu Hongwei,Wu Hongping,Pan Shilie,et al. A novel deep UV nonlinear optical crystal Ba3B6O11F2, with a new fundamental building block, B6O14 group[J]. Journal of Materials Chemistry,2012,22(19):9665-9670.