Sub-ns electric field measurement in transient atmospheric pressure plasmas (A01)

瞬态大气压等离子体中的亚纳秒电场测量 (A01)

• 批准号: 397765137
• 金额: --
• 依托单位: Institut für Experimentalphysik V: Lehrstuhl für Plasma- und Atomphysik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/397765137?language=en
• 关键词: Sub; ns; electric; field; measurement

One of the most important parameters determining gas discharge plasmas is the reduced electric field E/N. The electric field controls the electron energy distribution function (EEDF) and, consequently, the pathways of electron energy losses, which have strong influence on the active species yield of the discharge. Thus, measurements of E/N in the discharge are a subject of prime interest in the study of gas discharges. Picosecond Electric-Field Induced Second Harmonic generation (E-FISH) is used as an experimental means to measure model-independent the electric field in atmospheric pressure plasmas. These measurements are supplemented by sub-ns resolved optical emission measurements and electrical measurements of the current and voltage of the discharge.

确定气体放电等离子体的最重要参数之一是约化电场E/N。电场控制的电子能量分布函数（EEDF），因此，电子能量损失的途径，这对放电的活性物种产量有很大的影响。因此，在气体放电的研究中，测量放电中的E/N是一个主要感兴趣的课题。皮秒电场诱导二次谐波产生（E-FISH）是一种测量大气压等离子体中非模型电场的实验手段。这些测量是由亚纳秒分辨光发射测量和放电的电流和电压的电气测量补充。