强激光与粒子束2016，Vol.28Issue(7)：072003-1-072003-6,6.DOI:10.11884/HPLPB201628.072003
激光诱导环氧玻璃钢等离子体电子密度测量
Electron density measurement of laser-induced epoxy fiber reinforced polymer plasma
丛俊凯 1何衡湘 2夏惠军 1肖婧 2邓翠1
作者信息
- 1. 西南技术物理研究所，成都 610041
- 2. 电子科技大学 航空航天学院，成都 611731
- 折叠
摘要
Abstract
Interferograms of laser-induced epoxy fiber reinforced polymer plasmas are obtained through a Mach-Zehnder interferometry system.An improved digital double-exposure Fourier method is applied to extract initial wrapped phases from interferograms,and then an improved phase unwrapping algorithm based on a mask and a branch-cut method is proposed to solve the problem of phase unwrapping.After the inverse Abel transfor-mation of the unwrapped phase,spatial distributions of the electron density of laser-induced epoxy fiber rein-forced polymer plasma at various delays are acquired.Results show that the measured electron density of the plasma is mainly distributed on the order of 10 18 cm-3 .The experiment also indicates that the total amount of laser plasma electrons changes slightly within the recorded time and the change of the electron density is approx-imately inversely proportional to the change of the plasma volume.关键词
电子密度/激光诱导等离子体/环氧玻璃钢/干涉图相位Key words
electron density/laser induced plasma/epoxy fiber reinforced polymer/phase of inter-ferogram分类
数理科学引用本文复制引用
丛俊凯,何衡湘,夏惠军,肖婧,邓翠..激光诱导环氧玻璃钢等离子体电子密度测量[J].强激光与粒子束,2016,28(7):072003-1-072003-6,6.
