Scale Effect in Nanoscale Mechanical Resonance System

该项目旨在深入研究空气中工作的纳米级机械谐振器的尺度效应和相关的能量耗散。提出了一种将独特的实验方法与先进的研究工具和适当的理论分析相结合的综合研究方案。将开发集成单个纳米结构的纳米级光束谐振器。将实现一种全电子方法来驱动和传感共振。实验研究将进一步得到理论分析的佐证，以便逐步对这种纳米系统中的尺度效应和能量耗散有一个全面和扎实的理解。以往对纳米机械谐振器系统的研究大多局限于真空环境或低温环境。除了提供有关纳米尺度的机械共振系统的尺度效应这一有趣的科学课题的基础知识外，这项研究还可能最终导致用于环境中高灵敏度质量和生物分子传感的新型纳米尺度器件的发展。一个多方面的教育计划与拟议的研究相结合，也为学生和公众的积极参与和有效教育提供了一个完美的学习和培训机会，促进了科学知识的广泛传播和转移，最终造福于社会。

The project aims for the thorough investigation of the scale effect and the associated energy dissipation in nanoscale mechanical resonator operated in air. An integrated research program is proposed which combines unique experimental approaches with advanced research tools and appropriate theoretical analyses. Nanoscale beam resonators integrating individual nanostructures will be developed. An all-electronics approach will be realized for the driving and sensing of the resonance. The experimental study will be further corroborated with theoretical analysis in order to gradually develop a comprehensive and solid understanding of scale effect and energy dissipation in such a nanosystem. The study of nanoscale mechanical resonator systems has previously mostly limited to vacuum environment or cryogenic temperature. The proposed study, besides providing fundamental knowledge on an interesting scientific subject, namely the scale effect in mechanical resonance system at the nanoscale, can ultimately lead to the development of novel nanoscale devices for high sensitivity mass and biomolecular sensing in ambient environment. A multifaceted educational program coupled with the proposed research provides also a perfect learning and training opportunity for the active participation and effective education of students and the public, which facilitates the wide dissemination and transfer of scientific knowledge and ultimately benefits the society.