题目：Structured Light to Exert Extraordinary Optical Force on Nanoparticles

报告人：Cheng-Wei Qiu   Department of Electrical and Computer Engineering, National University of Singapore

地点： 教十二-423

时间：12月16日，周五，14:00-15:00

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 graphene nanoconveyor. A comprehensive insight will be provided toward how to structure the light beams and how to tailor light-matter interaction to realize functionalized micromanipulations. 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. 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.

个人简介：

Prof. Cheng-Wei Qiu received his B.Eng. and Ph. D. 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.   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, and Faculty Young Research Award in NUS 2013. His research interests are in the areas of electromagnetic wave theory of transformation optic metamaterials, light-matter interaction, and nanophotonics. He has published over 150 peer-reviewed journal papers including Nature Photonics, Nature Communications, Physical Review Letters, Advanced Materials, Laser & Photonics Reviews, Nano Lett./ACS Nano, etc. His research has received a lot of press coverage by Science, Viewpoint Physics, PRL Synopsis, Physics World, Phys.Org, ScienceDaily, MIT Technology Review, SPIE Newsroom, A&EN etc. He has given keynotes and many more Invited Talks in international conferences. He has been serving in Associate Editor for various journals such as EPJ, Scientific Reports, and Topical Editor for JOSA B, and General Chairs and TPC Chairs in various conferences.