Indexed by:
期刊论文
First Author:
Wu, Ding
Correspondence Author:
Ding, HB (reprint author), Dalian Univ Technol, Room 425, Dalian 116024, Peoples R China.
Co-author:
Sun, Liying,Liu, Ping,Hai, Ran,Ding, Hongbin
Date of Publication:
2018-02-01
Journal:
APPLIED SPECTROSCOPY
Included Journals:
SCIE、EI、PubMed
Document Type:
J
Volume:
72
Issue:
2
Page Number:
225-233
ISSN No.:
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.
Translation or Not:
no
