报告人：陶镇生，复旦大学物理学系教授、博士生导师

时间：2025年1月3日（周五），上午10：00

地点：李薰楼249室

摘要：固体高次谐波的超快谱学与显微学研究

Ultrafast manipulation of electronic states in quantum materials is essential for quantum-state engineering and ultrafast optical modulation. Recently, strong-field driven materials have exhibited fascinating tailored properties, including modification of topological states, modulation of optical properties and band-structure engineering. However, experimental methods for accessing the properties of strong-field dressed quantum states are lacking. In this talk, I will present our recently developed high-order sideband spectroscopy and microscopy techniques, which enables energy-, time- and space-resolved measurements on strong-field dressed quantum states or near-field wave phenomena. We present the first measurement on the dephasing rates of strong-field dressed exciton states, and resolve the strong-field exciton dissociation as the major dephasing mechanism. Furthermore, we realize the first 3D tomographic near-field tomographic imaging of a mid-infrared anapole resonant field in a micrometer-thick silicon resonator. These results highlight the high-order sideband spectroscopy and microscopy as a powerful tool for studying ultrafast manipulation of quantum materials.

个人简介（中文）：

陶镇生，复旦大学物理学系教授、博士生导师。本科和硕士毕业于复旦大学物理学系，博士毕业于美国密歇根州立大学物理天文系。先后获得国家高层次人才计划，德国“洪堡学者”，上海市“东方学者”特聘教授。多年来围绕超快光学、超快光物质相互作用方向开展了多项原创工作。至今在包括Science, Nature Nanotechnology, eLight, Light:Science&Applications，PRL等刊物发表论文50余篇。总引用2000余次。担任国家重点研发计划课题负责人1次，主持国家自然科学基金面上项目2项，原创探索项目1项。参加主流学术会议并受邀做邀请报告20余次。