Enhancement of Laser-Induced Breakdown Spectroscopic Signals in a Liquid Jet with Glow Discharge. Issue 2 (February 2018)

• Record Type: Journal Article
• Authors: Wu, Ding; Sun, Liying; Liu, Ping; Hai, Ran; Ding, Hongbin
• Is Part Of: Applied spectroscopy. Volume 72:Issue 2(2018)
• Page Start: 225
• Page End: 233
• Publication Date: 2018-02
• Subjects: Laser-induced breakdown spectroscopy -- LIBS -- glow discharge -- liquid jet -- electron temperature -- electron density; Spectrum analysis -- Periodicals; 543.505
• DOI: 10.1177/0003702817738029
• Languages: English
• ISSNs: 0003-7028

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 ∼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.