本学期学术活动

物理系colloquium:Quo vadis, metasurfaces?

2026-03-22    点击:

报告题目:Quo vadis, metasurfaces?

报 告 人:Cheng-Wei Qiu, National University of Singapore

报告时间:2026年3月26日 16:00

报告地点:物理楼W101

内容摘要:In this talk, I will introduce a few new thoughts and developments on metasurfaces and metaphotonics, especially when multiple symmetries of low-dimensional materials meet with man-made structures. Translational research and metasurface spin-offs from our lab will be discussed too. Metasurfaces and low-dimensional materials have been developing as important candidates in the interfacial engineering, providing a plethora of new possibilities in novel optoelectronic functions and applications. The synergies between those domains hold great promises in manipulating light-matter interaction. I will start from reviewing and reporting some of the most recent developments in metasurfaces and nanophotonics, and then focus on how monolayer TMDC and layered 2D materials could be hybridized with classic metasurfaces to modulate and structure novel light behavior, such as zero-dark-current and bipolar semimetal photodetector, monolayer meta-lens of atomic thickness, hybrid designs with enhanced SHG, PL, and tunable structural colors, by the coordinated hybridization between those two parties. Finally, we will elaborate our new breakthrough based on the fusion and integration of symmetry and topological physics with van der Waals polaritonic metasurfaces, as a new roadmap toward ultra-low loss, long-range propagation, topological interfaces, and tailorable on-chip integrated functional devices.

报告人简介:Cheng-Wei Qiu is Provost’s Chair Professor in National University of Singapore. He is the recipient of President’s Science Award 2023, the highest science distinction in Singapore. He was elected Fellow of Academy of Engineering Singapore, and Fellow of ASEAN Academy of Engineering and Technology. He is Fellow of APS, Optica, SPIE and The Electromagnetics Academy, US. He is Foreign Fellow of Chinese Optical Society. He is well known for his research in structured light and interfaces. He has published over 600 peer-reviewed journal papers, with H-index of 141. He was the recipient of MIT TR35@Singapore Award in 2012, Young Scientist Award by Singapore National Academy of Science in 2013, Engineering Researcher Award 2021 in NUS, World Scientific Medal 2021 by Institute of Physics, Singapore, Achievement in Asia Award (Robert T. Poe Prize) by International Organization of Chinese Physicists and Astronomers in 2022, Miller Visiting Professorship in UC Berkeley in 2025, Joseph Fraunhofer Award 2026 by Optica, etc. He was Highly Cited Researchers since 2019 by Web of Science. As an overseas partner, he has been awarded China’s Top 10 Optical Breakthroughs for 6 times (2019, 2020, 2021(one in Fundamental Research, and one in Applied Research), 2023 , 2025). He has been serving in Associate Editor for various journals such as JOSA B, PhotoniX, Photonics Research, and Editor-in-Chief for eLight. He also serves in Editorial Advisory Board for Laser and Photonics Review, Advanced Optical Materials, and ACS Photonics.