Observation quasi-periodic structures of laser-air plasma

30th International Conference on Photonic, Electronic, and Atomic Collisions

Jiao, Zhi-Hong^1 ; Zuo, Yan-Lei^2 ; Zhou, Xiao-Xin^1

College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou

730070, China^1

Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang

621900, China^2

关键词: Air plasmas;    Nanosecond lasers;    Quasi-periodic;    Quasi-periodic structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/4/032019/pdf
DOI  :  10.1088/1742-6596/875/4/032019

来源: IOP

【 摘 要 】

We observe the quasi-periodic longitudinal structures of plasma generated by the nanosecond laser breakdown in air. Experimental results indicate that the long foci lens utilized to focus main laser beam can cause periodic structures of plasma.