CAJ | 학술논문

强场电离是超快强激光与物质相互作用时发生的基本物理过程。强场驱动原子分子的电离电子动力学过程发生在一个光学振荡周期以内，是在阿秒时间尺度上研究电子超快动力学的典范。不仅如此，强场驱动下的超短电子束还为探测原子分子的结构及其超快动力学提供了重要的技术手段。文章首先简要阐述了超快强光场中原子分子电离的基本物理图像，在此基础上，介绍了近年来基于强场电离电子开展的超快过程研究的几个例子，最后简要讨论了强场电离研究的未来可能发展方向。
강장전리시초쾌강격광여물질상호작용시발생적기본물리과정。강장구동원자분자적전리전자동역학과정발생재일개광학진탕주기이내，시재아초시간척도상연구전자초쾌동역학적전범。불부여차，강장구동하적초단전자속환위탐측원자분자적결구급기초쾌동역학제공료중요적기술수단。문장수선간요천술료초쾌강광장중원자분자전리적기본물리도상，재차기출상，개소료근년래기우강장전리전자개전적초쾌과정연구적궤개례자，최후간요토론료강장전리연구적미래가능발전방향。
Ionization is a fundamental process during the interaction of matter with an ul-trafast intense laser field. The ionization dynamics of atoms and molecules driven by an intense field proceed on a sub-laser-cycle time scale and represent a prototype in exploring attosecond elec-tron dynamics. Moreover, the ultrashort electron bunches produced by the intense laser field can be exploited for measurements of atomic and molecular structure and their ultrafast dynamics. In this review we first briefly introduce the fundamental physics behind intense field ionization;next we discuss a few examples of ultrafast measurements based on the intense field ionized electrons;fi-nally we discuss the prospects of research on intense field ionization.