电场是指向性电离波自身及其与作用对象相互作用过程中的一项基本且重要的参数，对电离波在目标作用区域中产生的瞬时电场的研究是等离子体与材料相互作用研究中的一项关键的工作。本项目以电离波作用处理对象的瞬态电场建立与分布演化过程为核心研究问题，使用BSO(Bi12SiO20)电光晶体作为电离波作用对象，基于电离波作用BSO晶体所产生的泡克尔斯效应，利用时空分辨偏振成像系统明确不同放电参数、电极结构条件下电离波作用对象电场的建立与分布演化过程及其规律；其后，通过控制作用对象表面的相对残余电荷与物种浓度，探究表面残余电荷与物种对电离波在作用对象瞬态电场的建立及分布的影响；此外，明确电离波间的相互作用在处理对象电场建立及分布的影响与机制。最终进一步明晰指向性电离波与处理对象的作用机制，并建立以目标电场为指标的等离子体源优化与参数调控的依据。

Electric field is one of the most basic and crucial parameter of the interaction of the guided ionization waves(IWs) and its target. The diagnosis of the transient electric field of the target induced by IW in a small area is a very crucial work in the research area of the interaction between the plasma and material. In this project, we focus on the formation and distribution of the transient electric field of target induced by guided IWs. The BSO(Bi12SiO20) crystal will be used as the target, and based on its pockels effect, the character of the electric field induced by IW of the target will be clarified in the first place; Secondly, the effect of residual charges and activated species on the formation and distribution the electric field will be explored; Thirdly, the effect and the mechanism of the interaction of the IWs on the formation and distribution will be explicit. In summary, the mechanism of the interaction between the IW and the targets can be clarified and the basis for optimization and parameter control for the plasma source based on the electric field of the target can be established through this experimental diagnostic research.