手性信息传递中等离激元介导的光与分子对映选择作用机理研究

手性信息传递能够赋予人工材料新颖的物理特性和功能。本项目针对金属纳米颗粒胶体自组装体系中光与分子协同的手性信息传递情形，研究等离激元近场增强和热电子效应在手性传递中的作用，探索基于等离激元介导的光与分子对映选择作用的新策略，调控纳米尺度上手性信息的传递和放大，实现光学调控纳米颗粒自组装手性构筑及其手性光学性质。这项研究不仅有助于深入理解在纳米尺度上的手性信息传递和放大的物理机理，还为发展基于纳米等离激元手性功能结构在手性传感、手性光催化、微纳光子器件等方面的应用提供新的思路。

Chiral information transfer can impart artificial materials novel physical properties and functions. This proposal aims to study the cooperatively transfer of chiral information between light and molecules in the self-assembly system of metallic nanocolloids. We will study the plasmon-mediated enantioselective interactions between circularly polarized light and enantiomeric pairs of molecules, with particular attention to the key role of plasmon near-field enhancement and hot-electron effects in the chiral cooperative transfer. Our goal here is to establish a new strategy for regulating the transmission and amplification of chiral information on the nanometer scale, so as to achieve the chiral architecture of metallic nanocolloids with desired chiral plasmonic properties by means of optically controlling method. This research not only helps to deeply understand the physical mechanism of chiral information transfer and amplification on the nanoscale, but also provides a new pathway for developing chiral nanoplasmonic functional structures for applications in chiral sensing, chiral photocatalysis, and photonic nanodevices etc.