The theoretical study of vanadium borate crystals containing vanadium oxygen in Xinjiang Institute of Physics and Chemistry has been advanced

The wavelength extension of the laser source largely depends on the frequency conversion device material—the frequency conversion capability of the nonlinear optical crystal. With the increasing importance of lasers in the UV and deep-UV applications, how to design borate nonlinear optical materials with better synthesis performance and ultraviolet and deep ultraviolet non-linear optical materials other than borate is the focus and focus of current research.

Under the support of the National Natural Science Foundation of China and the “973” project of the Ministry of Science and Technology, the Photovoltaic Functional Materials Laboratory of the Xinjiang Institute of Physics and Chemistry, Chinese Academy of Sciences, and Li Mingxian, a professor at Tamkang University in Taiwan, have conducted in-depth studies on the combination of boron oxide groups and vanadium oxide groups. The sodium vanadium borate, Na3VO2B6O11, was found to be the main source of the frequency-doubling effect of this nonlinear optical material as a distorted (VO4)3-group rather than a (BO3)3-group. Distortion tetrahedrons known in nonlinear materials have (PO4)3-, (SiO4)4-, (ZnO4)4-, and (AlO4)5- groups, but these groups are nonlinear materials in which they are located. The second harmonic effect on the material is much smaller than the (BO3) 3-group in the material.

The method of quantitative analysis using frequency-doubled charge weights and real-space atom cleavage confirms that the (VO4)3-group in the Na3VO2B6O11 crystal is (BiO4)5− and (BiO4)5− in addition to the BIBO and YAl3(BO3)4 (YAB) crystals. YO6) The 9-group is another source of contribution to the dominant material effect. The research results have extended the research object of UV nonlinear optical crystal materials and provided a new idea for designing new nonlinear optical materials.

The results of this study have been published in Phys. Chem. Chem. Phys., DOI: 10.1039/C4CP04248D.

PUMP

Yantai Ciso Lubrication Technology Co.,LTD , https://www.cisolubrication.com