Large Crystal Growth and New Crystal Exploration of Mid-Infrared Second-Order Nonlinear Optical Materials
Large Crystal Growth and New Crystal Exploration of Mid-Infrared Second-Order Nonlinear Optical Materials
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DOI：
10.1007/430_2011_72
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Xiaoming Jiang;Sheng-ping Guo;H. Zeng;Ming-Jian Zhang;G. Guo
中科院分区：
文献类型：
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作者：
Xiaoming Jiang;Sheng-ping Guo;H. Zeng;Ming-Jian Zhang;G. Guo
中红外二阶NLO晶体是中红外变频应用中不可缺少的器件。与DUV和UV/Vis/近红外NLO晶体相比，实用的中红外NLO晶体相对较少，其中许多仍处于实验室研究阶段。本章综述了中红外NLO晶体的最新研究进展，主要包括通过各种生长方法将经典中红外NLO晶体生长成大质量的中红外NLO晶体或适合激光器件的准相匹配结构，以及通过引入新的设计和合成策略探索新的中红外NLO晶体潜力。最近的中红外NLO晶体可分为四类，即经典的二元和三元金属嘌呤和硫族化合物、四元金属硫族化合物、二元和三元金属卤化物，以及晶体结构中含有至少两种明显不同化学键的不同键型杂化化合物。金属化合物和硫属化合物在生长大晶体方面受到了广泛的关注。异键型杂化材料是一类新型中红外NLO材料，许多是近十年来发现的。在金属卤化物体系中，大晶体的生长和新晶体的发现都取得了进展。
Mid-IR second-order NLO crystal is indispensable in the frequency conversion applications in the mid-IR region. Compared with DUV and UV/Vis/near-IR NLO crystals, practical mid-IR NLO crystals are relatively rare, and many of them are still at the stage of laboratory research. This chapter reviews the recent progress on the mid-IR NLO crystals, which mainly includes growing the classical mid-IR NLO crystals into large high-quality ones or into quasi-phase-matching structures that are suitable for the laser devices by various growth methods and exploring new potential mid-IR NLO crystals by introducing new design and synthesis strategies. Recent mid-IR NLO crystals can be divided into four categories, i.e., classical binary and ternary metal pnictides and chalcogenides, quaternary metal chalcogenides, binary and ternary metal halides, and different-bond-type hybrid compounds that contain at least two types of obviously different chemical bonds in the crystal structures. Metal pnictides and chalcogenides have got much attention on growing large crystals. Different-bond-type hybrid is a new family of mid-IR NLO materials, and many of them were found in the last decade. In metal halide system, both progress in growing large crystals and discovering new ones have been made.