报告题目： Extreme concentration of light at the nanometer scale

报告时间： 3月24日（周四）下午4:00-5:00

报告地点： 物理学院新建物理楼五楼大报告厅

报告人： Dr. Fumin Huang

School of Math and Physics, Queen’s University Belfast

报告摘要：

Conventional optics (such as microscope) can only confine light at scales about the order of the wavelength of light, due to the diffraction effect. Through nano-engineered metallic nanostructures, light can be concentrated into nanometer-scale spots and the optical energy can be massively enhanced. This has found important applications in many areas, such as sensing, imaging and data storage. In this talk, I will introduce how light can be concentrated at the nanometer scale, the fundamental limit of light confinement, and the applications of plasmonic nanostructures. In addition, I will introduce the perspective of nano-focusing of light in the far field without evanescent fields, through a peculiar optical phenomenon called superoscillation, which could lead to the development of far-field superresolution optical microscopy.

报告人简介：

Dr. Fumin Huang is currently a Lecturer at Queen’s University Belfast. He obtained BSc and MSc in the Physics Department of Peking University and PhD degree at King’s College London (UK). After PhD he had postdoctoral research experience at the Optoelectronics Research Centre of University of Southampton and the Cavendish Laboratory of University of Cambridge. He joined Queen’s University Belfast as a lecturer in 2013.

邀请人：徐红星教授