报告名称：Photonics with optical orbital angular momentum　　

报告人：顾敏

　　中国工程院外籍院士、澳大利亚科学院院士、澳大利亚技术科学与工程院院士，上海理工大学校务委员会执行主席、上海理工大学人工智能纳米光子学中心主任、光电信息与计算机工程学院教授。

　　Min Gu

　　Centre for Artificial-Intelligence Nanophotonics

　　School of Optical-Electrical and Computer Engineering

　　University of Shanghai for Science and Technology, Shanghai, China   

　　报告地点：瞬态室三楼会议室

　　报告时间：12月26日（周四）上午10:00

　　讲座摘要：

　　Abstract

　　Research in photonics has transformed the society in every sector of our life due to the capability of the nanoscale manipulation of light in multiple physical dimensions. Optical multiplexing—a technique in which multiple individual optical signals encoded in physical dimensions of light, including time, space, wavelength, polarization and angular momentum, are processed in parallel—has played an indispensable role in information optics. The possibility of manipulation of optical angular momentum at the nanoscale is of crucial importance for both fundamental research and many emerging applications. However, it is still fundamentally challenging to achieve on-chip angular momentum multiplexing due to the extrinsic nature of orbital angular momentum associated with a helical wavefront. Here we present an entirely new concept of nanophotonic multiplexing of orbital angular momentum through the nonresonant angular momentum mode-sorting sensitivity by nanoring slit waveguides on tightly-confined plasmonic angular momentum modes, leading to on-chip angular momentum multiplexing of ultra-broadband light. Multiplexing of orbital angular momentum provides a horizon for high-capacity nanoscale information optics in telecommunications, quantum information processing, chemical sensing, display, metrology and holography.

　　Biography

　　Professor Gu is Executive Chancellor of the University Council and Distinguished Professor of University of Shanghai for Science and Technology. He was Distinguished Professor and Associate Deputy Vice-Chancellor at RMIT University and a Laureate Fellow of the Australian Research Council. He is an author of four standard reference books and has over 500 publications in nano/biophotonics. He is an elected Fellow of the Australian Academy of Science and the Australian Academy of Technological Sciences and Engineering as well as Foreign Fellow of the Chinese Academy of Engineering. He is also an elected fellow of the AIP, the OSA, the SPIE, the InstP, and the IEEE. He was President of the International Society of Optics within Life Sciences, Vice President of the Board of the International Commission for Optics (ICO) (Chair of the ICO Prize Committee) and a Director of the Board of the Optical Society of America (Chair of the International Council). He was awarded the Einstein Professorship, the W. H. (Beattie) Steel Medal, the Ian Wark Medal, the Boas Medal and the Victoria Prize for Science and Innovation. Professor Gu is a winner of the 2019 Dennis Gabor Award of SPIE.