Adaptive Laser Shock Micro-Forming Process and Metrology

该奖项支持激光物质相互作用的基础光学科学研究，以建立平行激光微成形制造技术。具体而言，该研究将利用自适应光学技术产生具有任意光束轮廓和能量分布的多个激光束，同时对多个微工件进行快速三维激光冲击微成形。利用自适应激光束成形工具和多分辨率分子力学模拟方法，研究激光诱导激波与微纳米机械结构的相互作用，以更好地了解激光诱导缺陷的产生、传播和分布，从而提高三维激光微成形制造的效果。本研究开发的新型激光冲击制造方案有可能彻底改变现有的激光冲击微成形制造技术。它将极大地提高制造的灵活性、精度和吞吐量。这项科学研究将促进对激光激波与纳米尺度机械结构相互作用的科学认识。新的激光冲击制造技术将增强美国制造业在微系统制造和装配方面的竞争力。该奖项还通过新课程开发、课外活动和社区外展，为美国学生提供了激光技术、制造和材料工程方面的新培训机会。

This award supports fundamental optics science research on laser matter interaction to establish a parallel laser micro-forming manufacturing technology. Specifically, the research will use adaptive optical technology to generate multiple laser beams with arbitrary laser beam profile and energy distribution to perform rapid three-dimensional laser shock micro-forming on multiple micro workpieces simultaneously. Using the adaptive laser beam shaping tool and multi-resolution molecular mechanic simulation approach, laser-induced shock wave interaction with micro- and nano-mechanical structures will be studied to gain better understanding on laser-induced defect initiation, propagation, and distribution to improve three-dimensional laser micro-forming manufacturing outcome.The new laser shock manufacturing scheme developed from this research has potential to completely overhaul the existing laser shock micro-forming manufacturing technique. It will dramatically improve manufacturing flexibility, precision, and throughput. The scientific investigation will advance scientific understanding on the interaction of laser-induced shock wave with mechanical structures at nanometer scale. The new laser shock manufacturing technology will enhance the competitiveness of the US manufacturing industry in micro-system manufacturing and assembly. This award also provides new training opportunities to US students in laser technology, manufacturing, and material engineering through new course development, extracurricular activities, and community outreach.