Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi, 830011, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
Angew Chem Int Ed Engl. 2017 Nov 6;56(45):14119-14123. doi: 10.1002/anie.201708231. Epub 2017 Oct 4.
The discovery of new nonlinear optical (NLO) materials for coherent light generation in the deep-ultraviolet (DUV, wavelength below 200 nm) region is essential for the development of laser technologies. Herein, we report a new material CsB O F (CBF), which combines the superior structural properties of two well-known NLO materials, β-BaB O (BBO) and KBe BO F (KBBF). CBF exhibits excellent DUV optical properties including a short cutoff edge (155 nm), a large SHG response (≈1.9×KDP), and a suitable birefringence that enables frequency doubling down to 171.6 nm. Remarkably, CBF melts congruently and shows an improved growth habit. In addition, our rational design strategy will contribute to the discovery of DUV NLO materials.
发现新的非线性光学（NLO）材料对于在深紫外（DUV，波长低于 200nm）区域产生相干光的激光技术的发展至关重要。在此，我们报告了一种新的材料 CsB O F（CBF），它结合了两种知名 NLO 材料 β-BaB O（BBO）和 KBe BO F（KBBF）的优异结构特性。CBF 表现出优异的 DUV 光学性能，包括短截止边缘（155nm）、大的二次谐波响应（≈1.9×KDP）和合适的双折射，可将频率降低至 171.6nm。值得注意的是，CBF 以共熔的方式熔化，并表现出改善的生长习性。此外，我们的合理设计策略将有助于发现 DUV NLO 材料。
