Authors

M. Weidman; M. Baudelet; S. Palanco; M. Sigman; P. J. Dagdigian;M. Richardson

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Abbreviated Journal Title

Opt. Express

Keywords

INDUCED PLASMA SPECTROSCOPY; CO2-LASER PULSE; EMISSION; LIBS; ABLATION; GRAPHITE; TIME; FEMTOSECOND; ENHANCEMENT; ABSORPTION; Optics

Abstract

Laser-induced breakdown spectroscopy (LIBS) using double-pulse irradiation with Nd:YAG and CO2 lasers was applied to the analysis of a polystyrene film on a silicon substrate. An enhanced emission signal, compared to single-pulse LIBS using a Nd: YAG laser, was observed from atomic carbon, as well as enhanced molecular emission from C-2 and CN. This double-pulse technique was further applied to 2,4,6-trinitrotoluene residues, and enhanced LIBS signals for both atomic carbon and molecular CN emission were observed; however, no molecular C-2 emission was detected.

Journal Title

Optics Express

Volume

18

Issue/Number

1

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

259

Last Page

266

WOS Identifier

WOS:000273249400032

ISSN

1094-4087

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