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                                  澳门皇冠

                                  學術活動

                                  澳门皇冠:Interacting Light with Semiconductor at the Nanoscale

                                  來源:  發佈時間:2019-04-12 17:13:55 點擊次數:

                                  報告題目:Interacting Light with Semiconductor at the Nanoscale
                                  報告人:Dr. Wei BaoUniversity of Nebraska Lincoln

                                  報告時間:2019417日(週三)aaaa,上午1000-1130
                                  報告地點:物理學院新樓五樓多功能廳

                                  報告摘要:

                                  The ability to probe and control light-matter interaction at the nanometer scale not only advances frontiers of fundamental science, but also is a critical prerequisite to device applications in electronics, sensing, catalysis, energy harvesting, and more. Exploiting and enhancing the originally weak light-matter interactions via nanofabricated photonic structures; we will be able to sense chemical species at single molecule levels, to devise better imaging and manufacturing tools, to transfer data more efficiently at higher speed.


                                  In this talk, I will first describe a simple and general nano-optical device developed during my Ph.D., called campanile probe, which lay groundwork for generally-applicable nano-optical studies. Two examples will be discussed, where we cross the boundary from insufficient to sufficient resolution beyond optical diffraction limit and perform optical hyperspectral imaging of luminescence heterogeneity along InP nanowires and synthetic monolayer MoS2, providing spectral information distinct from diffraction limited micro-PL spectral imaging. Following this, I will discuss the recent works using cavities to further enhance the strength of light-matter interaction into the strong coupling regime. The formation of coherently coupled cavity exciton-polariton in two-dimensional monolayer WS2 and the inorganic perovskite CsPbBr3 as well as the ultralow threshold optically pumped polariton lasing in perovskite cavities will be shown. Finally, I will conclude by presenting my vision of how these devices can enable a wide range of capabilities with relevance to multidimensional spectroscopy imaging, efficient solid-state lighting and even beyond.  


                                  報告人簡介:

                                  Dr. Wei Bao is an Assistant Professor in University of NebraskaLincoln. He was a postdoctoral researcher in Prof. Xiang Zhang’s lab at the University of California, Berkeley from 2015-2018. Previously he earned his B.A. in Physics (minor in Chemistry) at Peking University in 2009, and his M.S. in Mechanical Engineering (minor in Electrical Engineering) at UCLA in 2010. Wei then received his Ph.D. in Materials Science and Engineering (minor in Electrical Engineering) at University of California, Berkeley under the supervision of Prof. Miquel Salmeron and Prof. P. James Schuck in 2015. His Ph.D. work in nanoscale spectroscopic investigations of optoelectronic has led to several awards including: MRS Graduate Student Gold Award, Dorothy M. and Earl S. Hoffman Scholarships, Ross N. Tucker Memorial Award, as well as a R&D 100 Award 2013. His postdoc research focused on the interface between low-dimensional semiconductor nanophotonics and quantum physics.




                                  邀請人:徐紅星 教授

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