SBIR Phase I: Hydrothermal Growth of Potassium Beryllium Fluoroborate (KBBF) for deep UV Nonlinear Optical Applications.

这个小企业创新研究第一阶段项目是使用水热技术开发KBe2BO3F2（KBBF）单晶的商业生长过程。KBBF显示出作为深紫外非线性光学材料（NLO）的特殊前景。NLO对于波长低于200 nm的固态激光器的开发至关重要，用于光刻，微加工和光谱学。亚200纳米区域是极其难以接近的，并且用于这些波长的光学器件是相当罕见的。商业KBBF的成功开发将使激光器的应用，如倍频和波长混合在深紫外。 目前，这种材料在公开市场上无法买到。 中国投入巨资开发这种材料，但禁止出口。

This Small Business Innovative Research Phase I project is to develop a commercial growth process for single crystals of KBe2BO3F2 (KBBF) using hydrothermal techniques. KBBF shows exceptional promise as a deep UV non-linear optical material (NLO). NLOs are vital for the development of solid-state lasers with wavelengths below 200 nm for use in photolithography, micromachining and spectroscopy. The sub-200 nm region is extremely inaccessible and optics for those wavelengths are quite rare. The successful development of commercial KBBF will enable laser applications such as frequency doubling and wavelength mixing in the deep ultraviolet. Currently, this material is unavailable in the open market. China has invested heavily in developing this material but has embargoed its export.