应理学院物理系丁卫强老师及院青年教师联合会的邀请，新加坡国立大学仇成伟教授将于2013年12月11日（周三）我校举行学术报告。欢迎相关学科的老师和同学参加。

题目：Metamaterials, Metasurface, and Metalight

时间：12月11号（本周三）上午9：30

地点：理学楼213

摘要：

Metamaterials, derived from transformation optics or negative refraction law, have been receiving intensive attention. Exciting progress has been made to pave the way from fundamental physics to real-world devices, exhibiting unprecedented light phenomena, such as cloaking, super-resolution, focusing, redistribution of photon momentum, etc. In this talk, we will present an alternative look into the realm of non-metamaterials, and see whether they can perform as equally well as, if not better than, the metamaterial counterpart. In particularly, we will introduce meta-surface and its implication of generating metalight, in order to miniaturize the bulky metamaterials. The ultrathin metasurface becomes an unprecedented tool to manipulate the light in just few hundreds of nanometer thickness, and metalight, as a consequence, has demonstrated its intrinsic capability in micromanipulation of particles.