摘要
随着激光技术的迅猛发展,超快光学已经成为现代物理学研究中一个非常重要的前沿领域。高次谐波作为产生超短激光脉冲的重要手段之一,在近十年内快速发展。本文综述了气体高次谐波产生过程中存在的自旋角动量守恒、轨道角动量守恒、自旋-轨道相互作用以及由此引出的新奇物理现象,总结了现阶段研究所存在的部分空白与挑战。将结构光场应用于高次谐波领域极大地丰富了人们研究光与物质相互作用的手段,为光学操控和强场物理带来了新的机遇。
With the rapid advancement of laser technology,ultrafast optics has become a very important frontier area in modern physics research.High-harmonic generation,a primary technique for generating ultrashort laser pulses,has progressed rapidly in the past decade.In this paper,the conservation of spin angular momentum and orbital angular momentum,the spin-orbit interaction,and other novel physical phenomena in the high-harmonic generation in the gas medium,are reviewed.In addition,gaps and challenges in existing research are summarized.The application of structured light field in high-harmonic generation significantly enhances investigations of light-matter interaction and creates new opportunities in light manipulation and strong-field physics fields.
作者
董嘉豪
梁青青
许亮
刘一
Dong Jiahao;Liang Qingqing;Xu Liang;Liu Yi(School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2023年第15期352-361,共10页
Laser & Optoelectronics Progress
基金
国家自然科学基金(12034013)。
关键词
物理光学
谐波产生与混频
强场过程
超快非线性光学
角动量守恒
自旋-轨道相互作用
physical optics
harmonic generation and mixing
strong-field process
ultrafast nonlinear optics
conservation of angular momentum
spin-orbit interaction
