Topic: Metasomorphic Photonics: From Science Fantasy to Disruptive Imaging Technology

Speaker: Li Tao, Professor, Deputy Dean of The School of Modern Engineering and Application, Nanjing University.

Report time: 10:00, May 13th

Tencent Conference : 112-149-486

Meeting moderator:  Professor Ma Ri

Hosted by: Institute of Atomic and Molecular Physics, Jilin University

Abstract:

      Metamaterials are a new type of artificial materials based on subwavelength structural units, whose properties and functions can exceed the limitations of traditional materials, and have been paid wide attention to since the new century. In the optical band, due to the difficult processing and serious loss of subwavelength nanostructures required for the construction of such metamaterials, the negative refraction, hyperlens, stealth and other effects proposed in the early stage are difficult to be perfectly realized, and face great obstacles and challenges in engineering application. In 2011, people put forward the idea of metamaterial surface, which can effectively suppress its propagation loss and is more convenient for processing, giving people the possibility to explore and develop new photonics materials, devices and technologies in optical band. In this report, we will review the progress of metamaterial photonics from metamaterial materials to metamaterial surfaces briefly and introduce the development of metamaterial surface devices from principle innovation to application. This paper mainly introduces the progress of metasomeric surface or metasomeric lens in chromatic aberration control, depth of field imaging, wide-field microscopy, wide-angle imaging, etc., demonstrates the advantages and characteristics of metasomeric lens in highly integrated portable imaging, and discusses and prospects the future development of metasomeric photonic technology.

Introduction:

      Li Tao is a professor and deputy dean of the School of Modern Engineering and Application at Nanjing University. He is one of the first selected candidates of the "Summit Talent Support Program" of Nanjing University, the Young and middle-aged Innovation Leader of the Ministry of Science and Technology, the winner of the National Natural Science Foundation of China, the winner of the "Wang Kuan-cheng" Education Fund of Hong Kong, and has presided over a number of key RESEARCH and development projects of the National Natural Science Foundation of China and the Ministry of Science and Technology. In 2005, he got his ph. D. degree in condensed matter physics from Nanjing University, and has been a visiting scholar at Nanyang Technological University and Hong Kong Baptist University. His research interests include micro/Nano photonics, metamaterials and photonic integration. He has been awarded the "Top Ten Advances in Optics in China" for four times, the 2017 Scientific Chinese Of the Year, and the 2021 Vebleo Scientist Award by the international scientific organization. More than 50 invited presentations at international conferences, Phys. Rev. Lett., Light Sci. Appl. And other publications published more than 100 papers, more than 5000 times cited.