Plasma spectroscopy and diagnosis lab
Paper
Enhancement of Laser-Induced Breakdown Spectroscopic Signals in a Liquid Jet with Glow Discharge
Release Time:2020-06-02
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Journal Article
First Author:
Wu, Ding
Correspondence Author:
Ding, HB (reprint author), Dalian Univ Technol, Room 425, Dalian 116024, Peoples R China.
Co-author:
Hai, Ran,Ding, Hongbin,Liu, Ping,Sun, Liying
Date of Publication:
2018-02-01
Journal:
APPLIED SPECTROSCOPY
Included Journals:
PubMed、EI、SCIE
Document Type:
J
Volume:
72
Issue:
2
Page Number:
225-233
ISSN:
0003-7028
Key Words:
Laser-induced breakdown spectroscopy; LIBS; glow discharge; liquid jet;
electron temperature; electron density
Abstract:
In this work, emission signals of laser-induced breakdown (LIBS) plasma of a flowing liquid jet in the absence and presence of an air-supported glow discharge have been investigated. In combination with a needle-to-needle glow discharge, a Q-switched neodymium-doped yttrium aluminum garnet (Nd:YAG) laser (1064 nm, 5 ns) with power density similar to 10(10)W/cm(2) was used to generate a plasma from a liquid jet. Emission lines of Mg, Ca, Al, Li, Na, and K all showed significant enhancements in the presence of the glow discharge. Lower continuum background was also observed. Mechanisms of the line emission enhancement and continuum radiation reduction were discussed.
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