Nd:YAG-CO2 double-pulse laser induced breakdown spectroscopy of organic films

Abstract

Laser-induced breakdown spectroscopy (LIBS) using doublepulse 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 C2 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 C2 emission was detected.

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Document Details

Document Type
Technical Report
Publication Date
Jan 05, 2010
Accession Number
ADA519506

Entities

People

  • Martin Richardson
  • Matthew Weidman
  • Matthieu Baudelet
  • Michael Sigman
  • Paul J. Dagdigian
  • Santiago Palanco

Organizations

  • University of Central Florida

Tags

Communities of Interest

  • Advanced Electronics
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Carbon Dioxide Lasers
  • Chemistry
  • Detection
  • Detectors
  • Energetic Materials
  • Explosives
  • Films
  • Graphitic Materials
  • Laser Beams
  • Laser Pulses
  • Laser Spectroscopy
  • Lasers
  • Materials Science
  • Organic Materials
  • Spectra
  • Spectroscopy
  • Waveplates

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition