I will report some of the most recent developments in my group as well as in the field of the interfacial engineering of manipulation of light-matter interactions, via the artificially constructed structures of ultrathin thickness compared to the wavelength. In particular, the low-dimension and high-frequency scaling may promise a lot more interesting applications, while the challenges in design principle and fabrication capability will become critical limits. Nano-patterned surfaces to modulate and structure novel light behavior will be studied and the following advanced functionalities will be discussed: 3D meta-hologram, high-pixelated nanoprinting, dynamic OAM generation, and more interestingly, the 2D-material meta-lens of <1nm thickness, etc. our work paves a roadmap to design sophisticated and advanced optical devices, with low dimension, miniaturization, randomness, and scaled-up capability.

报告人简介：Prof. Cheng-Wei Qiu received his B.Eng. and Ph. D. degree in 2003 and 2007, respectively. He was a Postdoctoral Fellow at Physics Department in MIT till the end of 2009. Since December 2009, he joined NUS as an Assistant Professor and was promoted to Associate Professor with tenure in Jan 2017. From 1st Jan 2018, he was promoted to Dean’s Chair in Faculty of Engineering, NUS. His research is known for the structured light for beam manipulation and nanoparticle manipulation. He has published over 170 peer-reviewed journal papers so far, including Science, Science Advances, Nature Photonics, PRL, etc. He has been serving in Associate Editor for various journals such as EPJ, Scientific Reports, JOSA B, and General Chairs, Symposium Chairs, and TPC Chairs in various international conferences.