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KLi(HC<sub>3</sub>N<sub>3</sub>O<sub>3</sub>)·2H<sub>2</sub>O: Solvent-drop Grinding Method toward the Hydro-isocyanurate Nonlinear Optical Crystal
292
Citations
55
References
2019
Year
A novel mixed alkali hydro-isocyanurate, KLi(HC<sub>3</sub>N<sub>3</sub>O<sub>3</sub>)·2H<sub>2</sub>O was first prepared in AOH-BOH-H<sub>3</sub>C<sub>3</sub>N<sub>3</sub>O<sub>3</sub> (A/B = Li/Na/K/Rb/Cs) system via a solvent-drop grinding method. KLi(HC<sub>3</sub>N<sub>3</sub>O<sub>3</sub>)·2H<sub>2</sub>O shows a large second harmonic generation response (5.3 × KH<sub>2</sub>PO<sub>4</sub>) with an ultraviolet cutoff edge of 237 nm. More importantly, the bulk single crystal can be readily grown through water solution technique. Characterization of these crystals indicates that KLi(HC<sub>3</sub>N<sub>3</sub>O<sub>3</sub>)·2H<sub>2</sub>O has a high laser damage threshold (LDT) (4.76 GW/cm<sup>2</sup>) and exhibits a large birefringence (Δ n = 0.186@514 nm), which reduces Type I phase-matching to 246 nm.
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