Materials World Network: III-nitride Nanomaterials Growth and Control for Solid-State Cavity Quantum Electrodynamics

材料世界网：III族氮化物纳米材料的生长和固态腔量子电动力学控制

• 批准号: 1108176
• 负责人: Chee Wei Wong
• 金额: $ 31.8万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-08-15 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1108176&HistoricalAwards=false
• 关键词: Materials; World; Network; III; nitride

The strongly quantum-confined III-nitride material system fundamentally offers the distinct opportunity to operate at high temperatures (200K or more) for scalable semiconductor cavity quantum electrodynamics. Supported by advances in materials growth, optical spectroscopy, and first-principles modeling, this research examines the combination of InGaN quantum dots with mesoscopic optical cavities for solid-state cavity quantum electrodynamics. Optimization of the materials growth and device nanofabrication is performed, to examine low defect density growth. Single quantum dots are targeted for light emission and its modification, as well as nonclassical optics. This research combines the expertise of two groups: III-nitrides materials growth at the Institute of Materials Research and Engineering (IMRE) in Singapore, and optical characterization and photonic crystals at Columbia University. The devices will be optically probed for the exciton characteristics. Microcavities such as whispering gallery modes and photonic band gap cavities will be examined. This Materials World Network project enables critical complementary efforts between scientists in the United States and Singapore, providing invaluable experience to the graduate students and senior scientists in different working environments. This collaboration also seeds future efforts in the area of solid-state physics and quantum information processing. This research is complemented with international education and exchange efforts, involving iterated feedback and interactions between the two institutions on materials growth and optical spectroscopy, co-supervision of PhD students, participation of the US personnel internationally, and exchange of senior research staff. Furthermore, high-school teacher and undergraduate student exchanges are supported. To support this international activity, video teleconference reviews are also held. The research developed in this collaborative program will be disseminated on the web as well as through international conferences and publications.

强量子限制的III族氮化物材料系统从根本上提供了在高温（200 K或更高）下操作的独特机会，用于可扩展的半导体腔量子电动力学。在材料生长、光谱学和第一性原理建模方面的进展的支持下，本研究考察了InGaN量子点与介观光学腔的结合，用于固态腔量子电动力学。进行材料生长和器件纳米结构的优化，以检查低缺陷密度生长。单量子点是光发射及其修改，以及非经典光学的目标。这项研究结合了两个小组的专业知识：新加坡材料研究与工程研究所（IMRE）的III-氮化物材料生长，以及哥伦比亚大学的光学表征和光子晶体。这些器件将被光学探测激子特性。微腔，如回音壁模式和光子带隙腔将被检查。这个材料世界网络项目使美国和新加坡的科学家之间的关键互补努力，提供宝贵的经验，研究生和资深科学家在不同的工作环境。这种合作也为固态物理和量子信息处理领域的未来努力奠定了基础。这项研究与国际教育和交流工作相辅相成，涉及两个机构之间关于材料生长和光谱学的反复反馈和互动，博士生的共同监督，美国人员在国际上的参与以及高级研究人员的交流。此外，还支持高中教师和本科生交流。为支持这一国际活动，还举行了电视电话会议审查。在这个合作计划中开发的研究将在网络上以及通过国际会议和出版物传播。