Development of Ternary Chalcopyrite Semiconductors for Nonlinear Optical Applications in the Mid-Infrared

9807128 Halliburton大学/行业合作GOALI提案旨在改进三元和四元黄铜矿（ZnGeP2, CdGeAs2, CdGe(As1-xPx)2, AgGaSe2, AgGa1-xInxSe2, AgGaTe2）；潜在的应用是变频，可调谐激光和光学参量振荡器（OPO）材料。西弗吉尼亚大学（WVU）的拉里·哈里伯顿教授正在与新罕布什尔州纳舒阿的桑德斯合作，在那里晶体生长研究将与西弗吉尼亚大学的表征研究合作进行。评估这些材料缺陷的技术包括EPR、光诱导EPR和光诱导ENDOR。该项目的一个重要特点是与桑德斯晶体群的反馈回路，无论是在材料的生长和生长后处理。从缺陷表征中获得的知识将为晶体生长和生长后处理的修改提供指导，这有望导致具有优化非线性光学特性的材料。该项目由DMR电子材料计划和MPS OMA（多学科活动办公室）共同支持。该项目涉及具有高技术相关性的材料科学主题领域的基础研究问题。该研究将为电子/磁性器件的重要方面提供基础材料科学知识。从研究中获得的基本知识和理解有望为设计和生产改进的材料和材料组合提供基本的理解和基础，从而有助于提高先进光子器件的性能和稳定性。该计划的一个重要特点是通过在基础和技术上重要的领域培训学生来整合研究和教育，并通过项目的GOALI方面为学生提供体验学术和工业研究方法和环境的重要机会。＊＊＊

9807128 Halliburton This University/Industry collaborative GOALI proposal aims for improved ternary and quaternary chalcopyrites (ZnGeP2, CdGeAs2, CdGe(As1-xPx)2, AgGaSe2, AgGa1-xInxSe2, AgGaTe2); potential applications are frequency conversion, tunable lasing and optical parametric oscillator (OPO) materials. Professor Larry Halliburton at West Virginia University (WVU) is collaborating with Sanders, Nashua, NH where crystal growth research will be done in collaboration with characterization studies at WVU. Techniques to assess defects in these materials include EPR, photo-induced EPR and photo-induced ENDOR. An important feature of the project is the feed-back loop with the Sanders crystal group, both in growth and post-growth treatments of the materials. The knowledge obtained from defect characterization will provide guidelines for modification in the crystal growth and post-growth treatment that is expected to lead to materials with optimized nonlinear optical properties. The project is co- supported by the DMR Electronic Materials Program and the MPS OMA(Office of Multidisciplinary Activities). %%% The project addresses basic research issues in a topical area of materials science having high technological relevance. The research will contribute basic materials science knowledge at a fundamental level to important aspects of electronic/magnetic devices. The basic knowledge and understanding gained from the research is expected to contribute to improving the performance and stability of advanced photonic devices by providing a fundamental understanding and a basis for designing and producing improved materials, and materials combinations. An important feature of the program is the integration of research and education through the training of students in a fundamentally and technologically significant area, and in providing an important opportunity through the GOALI aspect of the project for students to experience both academic and industrial research approaches and environments. ***