Comparison of nonintensified and intensified CCD detectors for laser-induced breakdown spectroscopy

Jorge E. Carranza, Emily Gibb, Ben W. Smith, David W. Hahn, James D. Winefordner

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

The performance and sensitivity of an intensified CCD array system and a nonintensified CCD array detector system are compared for laser-induced breakdown spectroscopy (LIBS). LIBS measurements were recorded in a calcium-based aerosol-seeded gas stream at ambient pressure. The signal-to-noise ratio based on the 393.37-nm calcium emission line was calculated as a function of detector delay with respect to the plasma-initiating laser pulse. Both ensemble-averaging and single-shot spectral analyses were performed. For all conditions, the intensified CCD system provided an enhanced signal-to-noise ratio compared with the nonintensified CCD system.

Original languageEnglish (US)
Pages (from-to)6016-6021
Number of pages6
JournalApplied optics
Volume42
Issue number30
DOIs
StatePublished - Oct 20 2003
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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