Dual-pulse laser induced breakdown spectroscopy: Time-resolved transmission and spectral measurements

V. Hohreiter, D. W. Hahn

Research output: Contribution to journalConference articlepeer-review

43 Scopus citations

Abstract

Spectral analysis of laser-induced plasmas for surface ablation has demonstrated the possibility of analyte signal enhancement with dual-pulse configurations as compared with traditional single-pulse LIBS. Using an orthogonal dual-pulse arrangement, measurements were performed using glass microscope slides to allow both spectral analysis as well as optical transmission measurements. Order of magnitude enhancements in Mg and Si atomic emission signal peak intensities were recorded along with similar enhancements of the continuum emission for dual-pulse LIBS as compared to single-pulse. Peak-to-base measurements showed a roughly 50% increase, while signal-to-noise ratios were enhanced by a factor of 2-3. Temporal analysis of the measured transmitted laser pulse waveforms showed no significant differences between dual-pulse and single-pulse LIBS configurations, providing additional insight into the possible laser coupling processes for the dual-pulse configuration.

Original languageEnglish (US)
Pages (from-to)968-974
Number of pages7
JournalSpectrochimica Acta - Part B Atomic Spectroscopy
Volume60
Issue number7-8
DOIs
StatePublished - Aug 31 2005
Externally publishedYes
EventLaser Induced Plasma Spectroscopy and Applications (LIBS 2004) Third International Conference LIBS Malaga - Malaga, Spain
Duration: Sep 28 2005Oct 1 2005

Keywords

  • Breakdown
  • Dual-pulse
  • LIBS
  • Plasma

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Spectroscopy

Fingerprint

Dive into the research topics of 'Dual-pulse laser induced breakdown spectroscopy: Time-resolved transmission and spectral measurements'. Together they form a unique fingerprint.

Cite this