报告题目

Topological photonic crystals

报 告 人

Ling Lu (陆 凌)

Institute of Physics, Chinese Academy of Sciences, Beijing, China

报告地点

物理楼中楼212

报告时间

2020年12月23日（周三）下午3:10-6:00

联 系 人

王剑威(62758257)

报告摘要

It has been widely recognized that topology is indispensable in distinguishing phases of matter (Nobel 2016). Similarly, new optical material systems are being discovered with non-trivial topologies of their global wave-functions in the parameter space, whose interfaces support novel states of light with ideal transport properties such as the robustness to arbitrarily large disorders and fabrication imperfections. These new degrees of freedoms in photonic bands promise wide exciting opportunities in both fundamental physics and potential applications.

In this talk, I will introduce the underlining principles and show our experimental realizations and theoretical predictions of 2D and 3D photonic crystals with topologically protected interface states, which, in the photonic perspective, are topological waveguides and topological cavities with stably novel properties that cannot be achieved otherwise.

报告人简介

Ling Lu is a researcher and group leader in the Institute of Physics, Chinese Academy of Sciences in Beijing China. He obtained his bachelor in Physics in 2003 from Fudan University in China. He got his Masters and Ph.D. in Electrical Engineering in 2010 at University of Southern California, where he worked on photonic crystal nanocavity lasers. He was a postdoc and later a research scientist in the Physics Department of Massachusetts Institute of Technology, where he worked on topological photonics. He was awarded the Chen Ning Yang Award by the Asian Pacific Societies in 2016, the Highly Cited Researchers by Clarivate Web of Science in 2019 and 2020, and is among the Distinguished Young Scientists by Natural Science Foundation of China in 2020.