报告题目:Optical Micromanipulation with Meta-fluidics and Meta-structures
报告人:Prof. Cheng-Wei Qiu Department of Electrical & Computer Engineering, National University of Singapore, 4 Engineering
报告时间: 12月18日 上午10点
报告地点:致远楼213
报告邀请人:高雷
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