【2024年12月3日】 纳米尺度下针尖诱导的光与物质相互作用的动态操控

主讲人

Dr.Kyoung-DuckPark is an Associate Professor in the Department of Physics at Pohang University of Science and Technology (POSTECH), South Korea. He earned his Ph.D. from the University of Colorado at Boulder in 2017. Before joining POSTECH, he served as an Assistant Professor in the Department of Physics at the Ulsan National Institute of Science and Technology (UNIST) from 2018 to 2022. Prof. Park's research focuses on developing novel nano-optical spectroscopy and imaging methods to investigate quantumoptical phenomena at the na noscale.

讲座主题

The controllable manipulation of bandgap, radiative emission, and energy transfer in low-dimensional quantum materials provides a versatile platform for arange of quantum photonic devices.  Moreover, the understanding and  precise regulation of nanoscale behaviors exhibited by excitonic quasiparticles, such as excitons and trions, in low-dimensional semiconductors are paramount for the development of highly efficient nano-excitonic devices. In this study, we introduce a tip-inducednano-spectroscopic approach for dynamically controlling light-matter interactions at the nanoscale. We then demonstrate a series of tip-induced nano-engineering experiments exhibiting plasmon-exciton in teractionsin quantum dots and atomically thin semiconductors. Our research shows a novel strategy for the creation of  robust, tunable, and ultracompact nano-excitonic devices utilizing low-dimensional semiconductors.