Analysis of laser-induced breakdown images measuring the sizes of mixed aquatic nanoparticles

J. W. Kim, J. A. Son, J. I. Yun, E. C. Jung, S. H. Park, J. G. Choi

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Sizes of aquatic colloidal nanoparticles are determined by utilizing the laser-induced breakdown detection technique. Specifically, the number of breakdown events is measured as a function of area in laser-induced plasma images, generated from a mixture of two different size nanoparticles in aqueous solution, by minimizing the energy of the incident laser irradiation to generate the plasma. We find that the accuracy of measuring the sizes of nanoparticles in mixtures is greatly improved when selecting the plasma images produced only within one-half of the Rayleigh range of the focused Gaussian beam where the irradiation is most uniformly distributed.

Original languageEnglish
Pages (from-to)75-77
Number of pages3
JournalChemical Physics Letters
Volume462
Issue number1-3
DOIs
Publication statusPublished - 2008 Sep 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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