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CsB 4 O 6 F: A Congruent‐Melting Deep‐Ultraviolet Nonlinear Optical Material by Combining Superior Functional Units
Author(s) -
Wang Xuefei,
Wang Ying,
Zhang Bingbing,
Zhang Fangfang,
Yang Zhihua,
Pan Shilie
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201708231
Subject(s) - ultraviolet , birefringence , second harmonic generation , nonlinear optical , materials science , cutoff , optoelectronics , laser , wavelength , nonlinear optics , optics , nonlinear system , physics , quantum mechanics
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 4 O 6 F (CBF), which combines the superior structural properties of two well‐known NLO materials, β‐BaB 2 O 4 (BBO) and KBe 2 BO 3 F 2 (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.