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8月10日学术报告

来源： 发布时间：2016-08-09【字体：大 中 小】

    题目：Nonlinear plasmonics for Biosensing and Bioimaging

　　姓名：Dang-Yuan Lei (雷黨願) 

　　单位：Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 

　　时间：2016年8月10日（周三） 上午9:30 

　　地点：1号楼108会议室 

　　  

　　Abstract: In this talk I will introduce an emerging research sub-discipline of nanophotonics – plasmonics, which studies the light-matter interaction at the nanoscale and applies the enhanced electromagnetic response of noble metal nanostructures in a variety of fascinating applications in biosensing, bioimaging, photonics, optoelectronics, energy and environment. Of particular interest here is the recently developed nonlinear plasmonics research that uses the spatially confined, intensity-amplified local fields to boost up the conversion efficiency of a wide range of conventional nonlinear optical processes such as harmonic generation and two-photon photoluminescence (TPPL) in noble metallic nanostructures themselves or traditional nonlinear materials. Following a brief overview of the ongoing research activities and facilities available in my group, I will present our recent research results on 1) plasmonic meta-molecules with pronounced Fano resonances for ultrasensitive molecular sensing and enhanced second-harmonic generation (SHG), 2) plasmonic golden junctions for enhanced SHG/TPPL/hyper-Raman scattering, and 3) plasmonic core-satellite upconversion nanostructures for improved bioimaging. 

　　  

　　Biography: Dang-Yuan Lei received his BSc and MPhil degrees, both in Physics, from Northwest University and The Chinese University of Hong Kong in 2005 and 2007, respectively. In October 2008, he went to Imperial College London to conduct his PhD studies, under the supervision of Prof. Stefan Maier and in the long-term collaboration with Prof. Sir John Pendry, and obtained his PhD degree in Physics in 2011 with his thesis awarded the prestigious prize “Anne Thorne PhD Thesis Prize”. He is currently an assistant professor in the Department of Applied Physics at The Hong Kong Polytechnic University since September 2012. His main research activities include nanophotonics and nanomaterials studies, with particular interest in surface plasmon-enhanced light-matter interactions at the nanoscale and their applications in energy harvesting, optoelectronic devices and biochemical sensing and biomedical imaging. Since 2007, he has published 70 scientific publications including 18 publications in Nature communications, Nano Today, Advanced Materials, Nano Letters, ACS Nano, Physical Review Letter, Energy & Environmental Science, and Nano Energy, with a total citation of 1600 times. 

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