SBIR Phase II: Synthesis and Characterization of High Purity ZnGeP2

这个小型企业创新研究二期项目解决了在1到3微米光学区域以低成本生长高光学质量和低吸收的大型锌-锗-磷（Zn-Ge-P）单晶的工艺需求。研究目标包括：(1)测量Zn-Ge-P体系的相平衡；(2)扩展对这些晶体缺陷结构的理解；(3)确定重要杂质的作用；(4)开发新的合成和晶体生长工艺；(5)生长晶体的退火研究，以降低光吸收；(6)生长晶体的广泛表征。这些具有改进的光学传输和晶体质量的Zn-Ge-P晶体将提供2.5至12微米的可调谐激光辐射的有效产生。潜在的应用包括污染物的远程检测，激光干扰和预警系统的防御用途，以及化学分析的增强光谱分析技术。

9501330 Ruderman This Small Business Innovation Research Phase II project addresses the need for a process to grow large Zinc-Germanium-Phosphorous (Zn-Ge-P) single crystals of high optical quality and low absorption in the 1 to 3 micron optical region, at low cost. The research objectives include: (1) measuring phase equilibria in the Zn-Ge-P system; (2) extending understanding of the defect structures in these crystals; (3) determining the role of important impurities; (4) developing a new synthesis and crystal growth process; (5) annealing studies of grown crystals to decrease optical absorption; and (6) extensive characterization of grown crystals. These Zn-Ge-P crystal with improved optical transmission and crystal quality will provide efficient generation of tunable laser radiation from 2.5 to 12 microns. Potential applications include remote detection of contaminants, defense uses in laser jamming and warning systems and enhanced spectral analysis techniques for chemical analysis.