Open AccessInfluence of laser-induced air breakdown on femtosecond laser ablation of aluminum
Author(s) -
Hang Zhang,
Fangteng Zhang,
Xi Du,
Guoping Dong,
Jianrong Qiu
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.001370
Subject(s) - femtosecond , ablation , laser , materials science , laser ablation , optics , aluminium , x ray laser , plasma , laser induced breakdown spectroscopy , optoelectronics , laser power scaling , physics , quantum mechanics , aerospace engineering , metallurgy , engineering
We investigated the influence of laser-induced air breakdown on the femtosecond laser ablation of aluminum target using time-resolved pump-probe shadowgraphic imaging method. The early-stage plasma expanding dynamics and subsequent expanding behaviors of shockwaves and material ejection plume were analyzed through shadowgraphs recorded at different time delays. The dominated mechanisms were clarified at different stages during femtosecond laser pulses ablating aluminum, which provide very valuable information for ultrashort laser ablation of metals.