Work

Combination of cylindrical confinement and spark discharge for signal improvement using laser induced breakdown spectroscopy

Year: 2014

Type: article

Abstract: Spark discharge has been proved to be an effective way to enhance the LIBS signal while moderate cylindrical confinement is able to increase the signal repeatability with limited signal enhancement effects. In the present work, these two methods were combined together not only to improve the pulse-to-pulse signal repeatability but also to simultaneously and significantly enhance the signal as well as SNR. Plasma images showed that the confinement stabilized the morphology of the plasma, especially for the discharge assisted process, which explained the improvement of the signal repeatability.

Source: Optics Express

DOI: 10.1364/oe.22.012909

Authors: Zongyu Hou, Zhe Wang, Jianmin Liu, Weidou Ni, Zheng Li

Institutions: Tsinghua University, Guodian Institute of Science and Technology

Language: English

Topic: Laser-induced spectroscopy and plasma

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: National Science Foundation, National Natural Science Foundation of China, National Key Research and Development Program of China