Inter-American Materials Collaboration (CIAM): Nonlinear Spectroscopy of Optical Ceramics

美洲材料合作组织 (CIAM)：光学陶瓷的非线性光谱

• 批准号: 0502715
• 负责人: Stephen Rand
• 金额: $ 30万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-15 至 2009-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0502715&HistoricalAwards=false
• 关键词: Inter; American; Materials; Collaboration; CIAM

NON-TECHNICAL DESCRIPTION: Ceramic materials have long been recognized as having electronic, thermal or physical properties with unique applications in science and technology. Only recently however has it been shown that specially processed ceramics can acquire adequate transparency to meet the requirements for medical imaging, novel laser technology and other high intensity illumination sources. Transparent ceramics have already achieved unprecedented performance in x-ray CAT scan detectors, energy-conserving metal-halogen lamps for consumer applications, and high average power solid-state lasers. In this project, transparent ceramics are studied with sophisticated optical techniques to determine whether preparation by an American-patented technique that maintains ultra-fine grain structure in the processed material yields advantages or unique applications associated with the nano-structure.TECHNICAL DETAILS: This project utilizes spectroscopy based on second- and third-order optical nonlinearities in transparent nano-structured ceramics to provide a firm scientific foundation for understanding emergent optical ceramic technology. It is designed to search for and examine (i) unexpectedly large nonlinear response, (ii) quantum size effects, and (iii) "tunability" between glass and single crystal material properties, that is expected to derive solely from the nano-structure of the ceramics themselves. The experimental program relies on cutting edge techniques that provide excellent training ground for graduate students, and an international collaboration that is a much-needed step in the direction of worldwide cooperation in science as well as the diversification of American science.This work is jointed supported by the Office of International Science and Engineering and the Division of Materials Research.

非技术描述：陶瓷材料长期以来被认为具有电子，热或物理特性，在科学和技术中具有独特的应用。 然而，直到最近才表明，经过特殊处理的陶瓷可以获得足够的透明度，以满足医学成像、新型激光技术和其他高强度照明光源的要求。 透明陶瓷已经在X射线CAT扫描探测器、消费应用的节能金属卤素灯和高平均功率固态激光器中实现了前所未有的性能。 在本项目中，利用先进的光学技术对透明陶瓷进行研究，以确定在加工材料中保持超细晶粒结构的美国专利技术的制备是否具有与纳米结构相关的优势或独特应用。技术参数：该项目利用光谱学的基础上二阶和三阶光学非线性透明纳米，结构陶瓷，为理解涌现光学陶瓷技术提供坚实的科学基础。 它的目的是搜索和检查（i）出乎意料的大的非线性响应，（ii）量子尺寸效应，和（iii）玻璃和单晶材料性能之间的“可调性”，这是预计仅来自陶瓷本身的纳米结构。 该实验项目依靠尖端技术，为研究生提供了良好的培训基础，并在国际科学合作以及美国科学多样化的方向上迈出了急需的国际合作一步。这项工作由国际科学与工程办公室和材料研究部联合支持。