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Exploratory investigation of new IR NLO materials

Jiyong Yao ,  Wenlong Yin ,  Kai Feng ,  Yicheng Wu ,  Chuangtian Chen 

Abstract

The search for new IR nonlinear optical (NLO) materials is a very active field in modern Inorganic Materials Chemistry. By applying a research strategy that combines “structural design” with “exploratory synthesis”, we have discovered a number of new IR NLO materials, namely the BaGa4Se7, LiGaGe2Se6, Li2In2MQ6 (M=Si,Ge; Q = S,Se), and BaGa2MQ6(M = Si,Ge;Q = S,Se) compounds. They possess not only large NLO responses and large band gaps but also the valuable thermal behavior of congruent-melting, which makes it feasible to grow high quality bulk crystals needed for thorough evaluation and practical application. We have obtained high quality BaGa4Se7 single crystal in centimeter size and measured many important physical properties incluing the refractive index, the NLO coeffecient, and the laser damage threshold. The results indicate that BaGa4Se7 is a promising new IR NLO material with good overall properties.

 

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Presentation: Oral at 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17, Topical Session 7, by Jiyong Yao
See On-line Journal of 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17

Submitted: 2013-03-28 06:54
Revised:   2013-07-27 10:48