Laser-induced breakdown spectroscopy with improved spectral resolutions through the generation of high-temperature and low-density plasmas

X. N. He, L. B. Guo, Z. Q. Xie, X. Huang, W. Hu, X. Y. Zeng, Y. F. Lu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Improved spectral resolutions were achieved in laser-induced breakdown spectroscopy (LIBS) through generation of high-temperature and low-density plasmas. A first pulse from a KrF excimer laser was used to produce particles by perpendicularly irradiating targets in air. A second pulse from a 532 nm Nd:YAG laser was introduced parallel to the sample surface to reablate the particles. Optical scattering from the first-pulse plasmas was imaged to elucidate particle formation in the plasmas. Narrower line widths (full width at half maximums: FWHMs) and weaker self-absorption were observed from time-integrated LIBS spectra. Estimation of plasma temperatures and densities indicates that high temperature and low density can be achieved simultaneously in plasmas to improve LIBS resolutions.

Original languageEnglish (US)
Title of host publicationLaser-Based Micro- and Nanopackaging and Assembly VI
DOIs
Publication statusPublished - Mar 26 2012
EventLaser-Based Micro- and Nanopackaging and Assembly VI - San Francisco, CA, United States
Duration: Jan 24 2012Jan 26 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8244
ISSN (Print)0277-786X

Conference

ConferenceLaser-Based Micro- and Nanopackaging and Assembly VI
CountryUnited States
CitySan Francisco, CA
Period1/24/121/26/12

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Keywords

  • High-temperature and low-density plasma
  • Improved spectral resolution
  • Laser-induced breakdown spectroscopy (LIBS)
  • Line width
  • Reheating

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

He, X. N., Guo, L. B., Xie, Z. Q., Huang, X., Hu, W., Zeng, X. Y., & Lu, Y. F. (2012). Laser-induced breakdown spectroscopy with improved spectral resolutions through the generation of high-temperature and low-density plasmas. In Laser-Based Micro- and Nanopackaging and Assembly VI [82440H] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8244). https://doi.org/10.1117/12.910352