CAREER: A Research and Education Program on Nanoscale Thermal Transport: Developing a High Spatiotemporal Resolution Photo-Thermal Microscope

这个职业项目旨在通过以下具体任务推进纳米尺度热传输的研究和教育计划：1)使用先进的抽头式极端紫外线(EUV)激光开发高通量、高时间分辨率(10飞秒)和高空间分辨率(10纳米)的光热显微镜，2)使用新的光热显微镜研究对微电子和能源技术至关重要的创新材料和器件的热传输过程，以及3)教育公众，包括本科生和K-12学生以及非工程师，关于纳米技术在各种热和能源应用中能做什么和不能做什么。智能优点：创新的纳米结构材料和设备的可靠性和性能强烈依赖于纳米和超快尺度的热传输。虽然在过去的二十年里，在表征纳米结构中的热传输方面已经取得了巨大的进展，但同时涉及工程纳米结构的高时间和高空间实验表征技术，尽管是可取的，但还没有实现。本研究旨在开发一种高通量、高时间分辨率和高空间分辨率的光热显微镜。这一新的表征工具将使研究人员不仅能够更好地了解纳米尺度和超快热传输的潜在物理机制，而且还可以更好地在小结构和短时间尺度上操纵热载体。使用这种新工具的综合理论和实验计划将被用来研究和操纵纳米结构中的热传输。这可能会导致信息技术和能源安全方面的变革性应用。广泛的影响：拟议的研究和教育活动整合计划旨在针对广泛的年龄组和科学专业知识的参与者，包括普通公众、K-12学生、本科生和研究生，以及工程和科研社区和行业的成员。此外，将特别注意扩大任职人数不足群体的参与。在该奖项的赞助下开展的活动将与科罗拉多大学的综合教学(ITL)计划相吻合，以启动一系列外展计划，包括：1)开发与纳米能源技术、用于热管理的纳米技术以及高级成像和表征相关的新课程和计划；2)通过ITL从代表性不足的群体中招募学生，以设计和建立纳米级热传输实验，以促进纳米技术方面的主动学习。研究小组的发现将在专业会议和期刊上传播，纳入本科生和研究生课程，并包括在Nano-Therm网络上，这是一个直播和互动的在线百科全书，致力于向公众传播纳米尺度热传输方面的进展，包括专业人员和K-12学生。

0846561YangThis CAREER project seeks to advance research and education programs in nanoscale thermal transport through the following specific tasks: 1) Develop a high throughput, high temporal resolution (10 femtosecond) and high spatial resolution (10 nanometer) photo-thermal microscope using advanced tap-top extreme ultraviolet (EUV) lasers, 2) Study thermal transport processes in innovative materials and devices that are critical to microelectronics and energy technologies, with use of the new photo-thermal microscope, and 3) Educate the public, including undergraduate and K-12 students as well as non-engineers, about what nanotechnology can and cannot do in various thermal and energy applications.Intellectual Merit: The reliability and the performance of innovative nanostructured materials and devices depend strongly on thermal transport at nano- and ultrafast scales. While tremendous progress has been made in the past two decades to characterize thermal transport in nanostructures, simultaneous high temporal and high spatial experimental characterization techniques involving engineered nanostructures, although desirable, have not yet been achieved. This research seeks to develop a high throughput, high temporal resolution and high spatial resolution photo-thermal microscope. This new characterization tool will enable researchers to not only better understand the underlying physical mechanisms in nanoscale and ultrafast thermal transport, but also better manipulate heat carriers in small structures and at short time scales. An integrative theoretical and experimental program that uses this new tool will be pursued to study and manipulate thermal transport in nanostructures. This could potentially lead to transformative applications in information technology and energy security.Broader Impacts: The proposed plan for integration of research and education activities is designed to target participants over a wide range of age groups and scientific expertise including the general public, K-12 students, undergraduate and graduate students, as well as members of the engineering and scientific research communities and industry. Moreover, particular attention will be given to broaden the participation of underrepresented groups. The activities made under the auspices of this award will dovetail with the Integrated Teaching and Learning (ITL) program at the University of Colorado to launch a number of outreach programs including: 1) Development of new courses and programs related to Nanotechnology for Energy, Nanotechnology for Thermal Management, and Advanced Imaging and Characterization and 2) Recruitment of students from underrepresented group through ITL to design and build nanoscale thermal transport experiments that promote active learning in nanotechnology. The discoveries of the research team will be disseminated in professional conferences and journals, integrated into both undergraduate and graduate courses, and included on the Nano-Therm web, a live and interactive online encyclopedia dedicated to dissemination of advances in nanoscale thermal transport to the public, including professionals and K-12 students.