Abstract

In this paper, we report the first enhanced emission for elements in a nonmetal or nonconducting matrix, glass, with the use of a preablation spark. The glass samples used in this work are prototypes of samples used to immobilize inorganic waste at the Savannah River Site Vitrification Facility. We have found that using a pre-ablation spark results in larger signal enhancements, 11- to 20-fold for titanium, aluminum, and iron in glass compared to the metal under the same experimental conditions. We also demonstrate that this method is more sensitive than single-pulse LIBS experiments for the direct solid sampling of vitrified waste glass.

Dual-pulse laser-induced breakdown spectroscopy with combinations of femtosecond and nanosecond laser pulses

Jon Scaffidi, Jack Pender, William Pearman, Scott R. Goode, Bill W. Colston, J. Chance Carter, and S. Michael Angel
Appl. Opt. 42(30) 6099-6106 (2003)

Optical emission enhancement using laser ablation combined with fast pulse discharge

Weidong Zhou, Kexue Li, Qinmei Shen, Qiaoling Chen, and Jingming Long
Opt. Express 18(3) 2573-2578 (2010)

Spatial and temporal dependence of interspark interactions in femtosecond-nanosecond dual-pulse laser-induced breakdown spectroscopy

Jon Scaffidi, William Pearman, Marion Lawrence, J. Chance Carter, Bill W. Colston, and S. Michael Angel
Appl. Opt. 43(27) 5243-5250 (2004)

Enhanced temperature and emission from a standoff 266 nm laser initiated LIBS plasma using a simultaneous 10.6 μm CO₂ laser pulse

Avishekh Pal, Robert D. Waterbury, Edwin L. Dottery, and Dennis K. Killinger
Opt. Express 17(11) 8856-8870 (2009)

Enhancement of LIBS emission using antenna-coupled microwave

Ali Khumaeni, Tampo Motonobu, Akaoka Katsuaki, Miyabe Masabumi, and Wakaida Ikuo
Opt. Express 21(24) 29755-29768 (2013)