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中、远红外波段黄铜矿类半导体晶体磷化锗锌(ZnGeP2,ZGP)非线性系数、热导率、光损伤阈值高,在中、远红外波段的频率转换方面有广阔的应用前景,特别是其非线性系数是KDP的160倍,是已知非线性光学晶体中最高者之一。该晶体的生长及其应用研究正在逐渐引起各国政府和科研人员的高度重视,并成为材料与光电子(激光)领域的研究热点之一。本文全面综述了该晶体的物性与电光性能,以及多晶原料的合成与单晶的生长方法和其应用前景。
The nonlinear coefficient, thermal conductivity and light damage threshold of ZnGeP2 and ZGP in the mid- and far-infrared-band chalcopyrite semiconductor crystals have a wide range of applications in the frequency conversion of the mid- and far-infrared bands. In particular, Is 160 times more nonlinear than KDP and is one of the highest of known nonlinear optical crystals. The growth of the crystal and its applications are gradually attracted the attention of governments and researchers all over the world and become one of the hot topics in the field of materials and optoelectronics (lasers). This article provides a comprehensive review of the physical properties and electro-optical properties of the crystals, as well as the synthesis of polycrystalline raw materials and the growth of single crystals and their application prospects.