Abstract:
A hyperbolic metamaterial offers a unique solution to overcome the diffraction limit by transforming evanescent waves responsible for imaging subwavelength features of an object into propagating waves. Here we proposed and demonstrated several hyperlens-based devices that integrate super resolution properties into the practical applications. We show that by properly designing the structure of the hyperlens, the subwavelength imaging, can be extended to cover the whole visible range. On the other hand, by reversing the direction of light propagation inside the hyperlens, it can be used to demagnify the image into sub-wavelengthed scale, potentially revolutionizing photolithography-based manufacturing and modern spectroscopy.

Biography：
Dr. Jingbo Sun is a Research Assistant Professor in the Department of Electrical Engineering at the University at Buffalo, the State University of New York, USA. His work has included investigating electromagnetic metamaterials covering the frequency range from microwave to optics and singularity optics.
Dr. Sun received his B.S. in Electrical Engineering in Jilin University and Ph.D. degree in Materials Science from Tsinghua University in 2007 and 2012. In 2014, he became a Research Assistant Professor at University at Buffalo, where he worked on optical vortex and optical metamaterials, in particular the hyperlens.
He has published more than 60 journal and conference papers, and has been a popular presenter at international and domestic conferences, including CLEO-US, Meta12-17, and at OSA topical meetings.