QST Seminar - 狄拉克缺陷态在光声超材料中的实现及应用
The field of photonic/phononic integrated circuits is gaining significant momentum. In these integrated circuits, optical and acoustic waves can be electrically generated, manipulated, and detected on a single chip. Various nano-devices have been demonstrated, but suppression of undesired backscattering of optical and acoustic waves at nanoscale has been considered as a grand challenge on integrated platforms, which limits further increase of scalability and functionality of large-scale networks based on light and sound.
Originating from condensed-matter physics, topological insulators are a unique material that is insulating in its bulk but allows high-speed propagation of electrons on its edges. Similar concepts of topological insulators can also be applied to electromagnetic waves and acoustic waves, which are a promising strategy to suppress undesired backscattering in nanophotonic and nanoelectromechanical integrated circuits. In this presentation, I will introduce our recent experimental advances in topological nanophotonic and nanoelectromechanical devices on integrated platforms.
马静文博士，香港大学博士后。2021年获得香港中文大学电子工程系博士学位，博士期间致力于拓扑光机电芯片研究，以第一及共一作者身份在 Nature Nanotechnology、Nature Communication、Science Advances、Light Science Application、Advanced Materials等期刊发表多篇论文。