Open AccessSignal quality improvement using cylindrical confinement for laser induced breakdown spectroscopy
Author(s) -
Zongyu Hou,
Zhe Wang,
Jianmin Liu,
Weidou Ni,
Lixin Zheng
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.015974
Subject(s) - repeatability , optics , laser , materials science , laser induced breakdown spectroscopy , signal (programming language) , pulse (music) , quality (philosophy) , physics , computer science , detector , chemistry , chromatography , programming language , quantum mechanics
In our previous work, we found that there was great potential to improve the pulse-to-pulse signal repeatability using a moderate cylindrical cavity confinement. However, the improvement was achieved only with certain experimental parameters; while under other conditions, there was no improvement or even worse repeatability. In the present work, the experimental configuration was redesigned and unexpected uncertainty from the variation of the laser and cavity alignment and the laser ablated aerosols were avoided. With these two improvements, we demonstrated that the cavity can always increase the signal repeatability. In addition, image taken by ICCD verified that the confinement improved the stability of the plasma morphology as expected.