In this talk, I will show our experimental realizations and theoretical predictions of 2D and 3D photonic crystals with topologically protected edge and surface states. Specifically, I will discuss single and multimode one-way waveguides, the observation of Weyl points, and a nonsymmorphic 3D photonic crystal supporting a single Dirac cone surface state immune to random disorder. This research can be extended to phonons, plasmons and other bosons. These new degrees of freedom in bosonic band topologies promise wide exciting opportunities in both fundamental physics and technological outcomes.

报告人简介：陆凌，中科院物理研究所 百人计划研究员、中组部“青年千人计划”入选者，2003年从复旦大学本科毕业，2010年从洛杉矶南加州大学博士毕业，导师John O’Brien教授，开展光子晶体微腔激光器的研究，随后在麻省理工学院从事博士后和研究人员，合作导师Marin Soljačić 教授和John Joannopoulos教授，并与Liang Fu教授合作。目前研究兴趣主要包括拓扑光子学（声学、等离激元）、光子晶体光纤、纳米光学等，发表论文30余篇，其中包括第一作者Science 1篇、Nature Photonics 2篇、Nature Physics 1篇等。