CAREER: Evaluation of Cr(2+) Doped Cadmium Chalcogenides as Mid-Infrared Laser Materials

职业：Cr(2) 掺杂镉硫属化物作为中红外激光材料的评估

• 批准号: 9733062
• 负责人: Uwe Hommerich
• 金额: $ 32.7万
• 依托单位: Hampton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-05-01 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9733062&HistoricalAwards=false
• 关键词: CAREER; Evaluation; Cr; 2+; Doped

9733062 Hommerich This CAREER project aims at a comprehensive investigation of chromium doped II-VI semiconductors for tunable solid-state laser applications in the mid-infrared wavelength region. Synthesis of materials will be carried out in an ongoing collaboration with researchers at Brimrose Corporation of America. Materials will be optically characterized by spectral luminescence studies, luminescence excitation and decay time measurements, optical absorption, and laser performance studies over the temperature range 15 - 450 K. Spectroscopic results will be modeled within the framework of crystal field theory to derive crystal field strength parameters, electron-phonon coupling strengths, and luminescence quenching activation energies. The results of the modeling will be used to derive structure/property relations which can guide the optimization of selected materials to achieve better laser performance. Educational components include: a new course in optical spectroscopy and new experiments for an advanced graduate laboratory; and activities to increase student participation in research from K-12 through the graduate level. This project aims to increase the skilled work force in an important field of optoelectronics with a special emphasis on enhancing the participation of underrepresented students. %%% The project addresses research and education 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 photonic materials. An important feature of the program is the emphasis on education, and on the integration of research and education through the training of students in a fundamentally and technologically significant research area with a special emphasis on participation of underrepresented students. ***

小行星9733062 这个CAREER项目的目的是全面研究铬掺杂的II-VI族半导体在中红外波长区域的可调谐固态激光器应用。材料的合成将与美国Brimrose公司的研究人员持续合作进行。材料将通过光谱发光研究、发光激发和衰减时间测量、光学吸收和15 - 450 K温度范围内的激光性能研究进行光学表征。光谱结果将在晶体场理论的框架内建模，以获得晶体场强度参数，电子-声子耦合强度，和发光猝灭激活能。建模的结果将被用来导出结构/性能关系，这可以指导所选材料的优化，以实现更好的激光性能。教育内容包括：在光谱学和先进的研究生实验室的新实验的新课程;和活动，以增加学生参与研究从K-12通过研究生水平。 该项目旨在增加光电子学这一重要领域的熟练劳动力，特别强调加强代表性不足的学生的参与。 该项目解决了材料科学领域的研究和教育问题，具有很高的技术相关性。 该研究将为光子材料的基础材料科学知识做出贡献。该计划的一个重要特点是强调教育，并通过在基本和技术上重要的研究领域对学生进行培训，特别强调代表性不足的学生的参与，将研究与教育相结合。 ***