Chinese Academy of Sciences

Technical Institute of Physics and Chemistry, Cas

Guochun Zhang

Yicheng Wu

Chuangtian Chen

Mingjun Xia

Junhua Luo

Sangen Zhao

Peizhen Fu

The present invention relates to the field of nonlinear optical crystal materials and provided herein a LiSr(BO)compound, a LiSr(BO)nonlinear optical crystal as well as preparation method and use thereof. The LiSr(BO)nonlinear optical crystal has a second harmonic conversion efficiency at 1064 nm of about two times that of a KHPO(KDP) crystal, and an UV absorption cut-off edge less than 190 nm. Furthermore, the crystal did not disintegrate. By flux method with LiO, LiO&#x2014;BO and LiO&#x2014;BO&#x2014;LiF used as flux agent, large-size and transparent LiSr(BO)nonlinear optical crystal can grow. The LiSr(BO)crystal had stable physicochemical properties, moderate hardness, and was easy to cut, processing, preserve and use. Therefore it can be used for preparing nonlinear optical devices and thus for developing nonlinear optical applications in the ultraviolet and deep-ultraviolet band.

Li4Sr(BO3)2 compound, Li4Sr(BO3)2 nonlinear optical crystal, preparation method and use thereof

The present invention relates to nonlinear optical crystals of compound NaLaBOand producing method and uses thereof. From the NaLaBOcompound, large size single crystal of NaLaBOcould be prepared by flux method. NaLaBOcrystals are non-hygroscopic, and possess stronger nonlinear optical effect and good mechanical properties. They meet the requirements for the frequency conversion of blue&#x2014;green wavelength lasers and could be used to prepare nonlinear optical devices.

Nonlinear optical crystals of compound Na3La9B8O27 and producing method and uses thereof

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Beijing, China

Guochun Zhang