题目：Quantum Optics of High Harmonic Generation: From Atoms to Solids and Waveguides
报告人：Misha Ivanov 教授
单 位：Max Born Institute for Nonlinear Optics
主持人：吴健 教授
时间：2025年5月9日15:00至16:30
地点：闵行校区光学大楼B325会议室
报告人简介：
Misha Ivanov教授于1989年在Prokhorov General Physics Institute获得博士学位。他是超快强场物理和阿秒物理领域的国际顶尖学者，曾在俄罗斯、波兰、加拿大、英国、以色列和德国等国家的知名研究机构和大学从事科研与教学工作。目前，他担任德国马克斯·玻恩非线性光学研究所理论部主任，同时担任柏林洪堡大学物理系的W3-S级教授。Ivanov教授在物理学领域的杰出贡献获得了多个权威奖项的认可，包括2003年加拿大皇家学会颁发的卢瑟福物理学纪念奖章、2004年洪堡基金会颁发的贝塞尔研究奖等。2022年，他当选为欧洲科学院院士。Ivanov教授在极端非线性光学、阿秒与强场物理、量子调控、二维和强关联材料中的超快动力学以及化学物理等领域取得了众多开创性研究成果，极大地推动了现代物理学的发展。Ivanov教授在Nature、Science、Physical Review Letters、Review of Modern Physics以及Nature和Science的子刊等顶尖期刊上发表论文100余篇，所有论文总引用次数超过37500次，H因子达80。
报告内容简介：
For more than three decades, high harmonic generation has been the corner stone of attosecond technology. The quantum nature of the material response to intense driving light has never been in doubt, in spite of the many nearly classical aspects of this response. However, during these past three decades, the nature of the generated light was universally assumed to be classical. Recently, this view has started to change. The first reason for the change is the availability of bright quantum sources of incident light, which are already intense enough to enable harmonic generation on their own. These sources can also be mixed with intense classical light, providing well-controlled “hybrid” light at the input that can generate quantum light at the output. The second reason is the possibility of correlated measurements of light, where multiple generated light frequencies are measured in coincidence with the measurement of the transmitted incident light, possibly inducing correlations in the measured photons.
But what about the quantum dynamics of the material system? Can the quantum properties of these material dynamics, triggered and controlled by the classical incident light, be mapped onto the quantum properties of the generated harmonic light? It appears that the answer is “yes”, and that achieving this goal might be simpler than one could have expected.
I will present our latest results on controlled generation of quantum light in resonant atomic gases and in quantum systems coupled to structured photonic continua, such as a two-level system inside the waveguide. Our results suggest that the dream of generating multiple harmonics of the incident laser light entangled across multiple octaves, from the infrared (IR) to the extreme ultraviolet (XUV) range, is completely realistic.