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JOURNAL OF SYNTHETIC CRYSTALS ›› 2023, Vol. 52 ›› Issue (7): 1302-1307.

Special Issue: 激光与非线性光学晶体

• High-Throughput Syntheses and Characterizations of Laser and Nonlinear Optical Crystals • Previous Articles     Next Articles

Electro-Optic Effect and Growth of KLi(HC3N3O3)·2H2O Crystal

YAN Tao, FAN Yujie, XU Feng, CHEN Yu, LUO Min   

  1. Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
  • Received:2023-05-14 Online:2023-07-15 Published:2023-08-16

Abstract: In this work, a novel electro-optic crystal KLi(HC3N3O3)·2H2O was explored by powder method. The contribution of lattice vibration was calculated by infrared reflectance spectrum and Raman spectrum. The effective nonlinear optical coefficient was estimated from the powder second harmonic generation response. Consequently, the electro-optic coefficient of KLi(HC3N3O3)·2H2O is determined to be 2.37 pm/V, which is comparable to that of commercial β-BBO. The crystal was grown by aqueous solution method. Superheating and supercooling curves were measured for different raw materials. A transparent crystal with size of 35 mm×25 mm×10 mm was obtained after optimizing the growth process. The relationship between crystal morphology and anisotropic growth rate was confirmed by means of X-ray orientation and piezoelectric coefficient measurement.

Key words: KLi(HC3 N3O3)·2H2O, electro-optic crystal, electro-optic coefficient, aqueous solution method, infrared reflectance spectrum, Raman spectrum, crystal growth

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