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

摘要

The present invention relates to nonlinear optical crystals of compound Na₃La₉B₈O₂₇ and producing method and uses thereof. From the Na₃La₉B₈O₂₇ compound, large size single crystal of Na₃La₉B₈O₂₇ could be prepared by flux method. Na₃La₉B₈O₂₇ crystals are non-hygroscopic, and possess stronger nonlinear optical effect and good mechanical properties. They meet the requirements for the frequency conversion of blue—green wavelength lasers and could be used to prepare nonlinear optical devices.