GOALI: ELASTIC WAVE RESONATORS

摘要：目前用于测量的技术存在测量速度慢、对表面相互作用敏感等问题，有些技术甚至会因表面针尖磨损而使被测表面变形。开发应对这些挑战的新工具可能会在纳米计量学和结构的纳米组装领域催生一个新纪元。这种系统在电子、光学和生物应用领域具有重要意义。这项综合研究和教育的目标是围绕弹性波谐振器的开发以及Ag2Ga纳米针和光机械致动器的集成，以实现纳米操纵、纳米计量和纳米组装的精密工具。弹性波谐振器的原理是一种使单维和多维驻波沿高纵横比微细纤维以千赫到兆赫的速率传播的方法。与灯丝的柔韧性和刚性相比，“波包”中包含的能量的大小使显著的驻波能够沿着灯丝产生和维持。该提案的目标是调查纳米级驻波探头谐振器在计量学中的使用，了解此类谐振器的机电极限和定标问题，开发数学模型，并开发在纳米组装中的应用。该提案的教育方面是利用基于研究的纳米机械谐振器本科课程、工业现场实习、研究生水平的纳米机械谐振器课程，以及在这个令人兴奋的领域为代表性不足的学生提供机会。

Abstract: Current techniques used for metrology are plagued by slow measurement speed, susceptibility to surface interactions, and some techniques can even deform the measured surface due to tip wear on the surface. Development of new tools to address these challenges could spawn a new era in the area of nano-metrology, and nano-assembly of structures. Such systems can have significance in the area of electronics, optical, and biological applications. This integrated research and education GOALI proposal centers around the development of elastic wave resonators and integration of Ag2Ga nano-needles and photomechanical actuators to enable precise tools for nanomanipulation, nano-metrology and nano-assembly. The principle of elastic wave resonators is a method by which single and multidimensional standing waves propagate at a rate of kHz to MHz along a high aspect ratio micro-scale filament. The magnitude of energy contained within the "wave packet" compared to the flexibility and stiffness of the filament enable pronounced standing waves to be generated and sustained along the filament. The proposal objectives are to investigate the use of nanoscale standing wave probe resonators for metrology, understand the electro-mechanical limits and scaling issues of such resonators, develop mathematical models and develop applications in nano-assembly. The educational aspects of the proposal are utilizing research based undergraduate course in nano-mechanical resonators, internships at industrial sites, graduate level course on nano-mechanical resonators, and opportunities for underrepresented students in this exciting area.