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Plasmon resonances, which are collective, coherent oscillations of conduction band electrons in metals or highly doped semiconductors, can greatly enhance the light-matter interaction. In particular, the strong coupling between circularly polarized light and plasmonic nanostructures opens new possibilities for nanomanipulation of nanoparticles or molecules, construction of chiral optical elements, and development of novel optoelectronic devices. In this talk, I will introduce our recent work on the unprecedented rotation control of laser-tweezed plasmonic gold nanostructures and the room-temperature valleytronic devices enabled by chiral plasmonic nanostructures.
Dr. Lei Shao is an assistant professor in Beijing Computational Science Research Center and Shenzhen JL Computational Science and Applied Research Institute (http://shaoleii.s2.cn.vc/CV). Dr. Shao obtained his BS degree in applied physics from the University of Science and Technology of China in 2008. He then obtained his MPhil and PhD degrees, both in physics, from The Chinese University of Hong Kong in 2010 and 2013, respectively. He did a postdoctoral study at Chalmers University of Technology from 2014 to 2017 and then worked as a research assistant professor at the Department of Physics of The Chinese University of Hong Kong from 2017 to 2019. Dr Shao’s research interests focus on nanoplasmonics and nanomanipulation.