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学术报告


10月17日仇成伟报告

发布时间:2018-10-15

报告时间:10月17日 周三  上午10:00

报告地点:实验室一楼会议室

报告人:仇成伟 教授(新加坡国立大学)

报告题目: Meta-fluidics and Meta-structures for Optical Micromanipulation

报告摘要: 

     This talk will demonstrate fundamental physics and origin, as well as experimental results, of extraordinary optical force phenomena, including negative pulling force, tunable lateral force, chiral force, negative radiation torque, and force application in biomedical applications. A comprehensive insight will be provided toward how to structure the light beams in meta-fluidics and meta-photonics, and how to tailor light-matter interaction to realize functionalized micromanipulations. The microfluidic chamber serves as a very powerful means to construct a coordinated light lattice, by the judicious interplay between optical force and drag force. Novel materials, like phase-change materials, chiral, and graphene, are also explored as new means. We also extend the previous micromanipulation toward nanomanipulation for sub-1nm particles, and propose novel scheme of synchronized dual barriers to sort out nanoparticles with single-digit nanometer precision. Furthermore, we shed a light to the recent advance in metasurface as a promising technology to structure complex lights so as to provide unexpected manipulation of nanoparticle.


报告人简介: 

     Prof. Cheng-Wei Qiu received his B.Eng. (USTC) and Ph. D. (NUS) degree in 2003 and 2007, respectively. He was a Postdoctoral Fellow at Physics Department in MIT till the end of 2009. Since December 2009, he joined NUS as an Assistant Professor and was promoted to Associate Professor with tenure in Jan 2017. From 1st Jan 2018, he was promoted to Dean’s Chair in Faculty of Engineering, NUS. He was the recipient of the SUMMA Graduate Fellowship in Advanced Electromagnetics in 2005, IEEE AP-S Graduate Research Award in 2006, URSI Young Scientist Award in 2008, NUS Young Investigator Award in 2011, MIT TR35@Singapore Award in 2012, Young Scientist Award by Singapore National Academy of Science in 2013, Faculty Young Research Award in NUS 2013, SPIE Rising Researcher Award 2018, and Young Engineering Research Award 2018 in NUS. He has managed quite a few with total amount exceeding 10 million grants as Lead PI, and 6 million grants as co-PI. His research is known for the structured light for beam manipulation and nanoparticle manipulation. He has published over 180 peer-reviewed journal papers. He has been serving in Associate Editor for various journals such as EPJ, Scientific Reports, JOSA B, and Guest Editor for ACS Photonics, Light: Sci. Appl., and General Chairs, Symposium Chairs, and TPC Chairs in various international conferences.