学术报告（2018年12月11日 周二 10：00-12:00）

主持人：周张凯副教授

欢迎广大师生前来参与！

【摘要】

Plasmonic metastructures based on localized surface plasmon resonances (LSPRs) of individual metallic nanoparticles provide interesting optical properties. However, they continue to suffer from complex fabrication processes and limited sample scaling when using conventional lithographic techniques. In this talk, Prof. Wang will introduce a nonlithographic approach to achieve a variety of periodic arrays of plasmonic metastructures with geometric shapes ranging. The meta-atoms are fabricating in highly homogeneous arrays with centimeter scale dimensions. Narrow line widths of their linear extinction spectra and a narrow, Gaussian distribution of the nonlinear emission intensities from large areas of the array demonstrate the high-level uniformity of the fabricated arrays. The prepared metasurfaces are used in the filed of imaging by structural colour, tunable metasurface, and fundamental research of optical nonlinearity.

【报告人简介】

Prof. Dr. Wenxin Wang earned his doctoral degree of Technical Physics in TU Ilmenau, Germany. Then he was introduced into Harbin Engineering University and became the head of the group of “Photonic Metamaterials”, which devotes its research to creating, understanding and applying photonic crystals as well as metasurfaces.