Two-dimensional imaging of gas-to-particle transition in flames by laser-induced nanoplasmas

Yiyang Zhang, Shuiqing Li, Yihua Ren, Qiang Yao, Chung K. Law

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Two-dimensional imaging of gas/particle phase transition of metal oxides in their native high-temperature flow conditions, using laser-driven localized nanoplasmas, was obtained by utilizing the gap between the excitation energies of the gas and particle phases such that only the Ti atoms in the particle phase were selectively excited without detectable Bremsstrahlung background. These in situ images of the particle phase Ti distribution allow the quantitative visualization of the transition of the gas precursors to the nanoparticle phase across the flame sheet as well as diffusion of the particle concentration in the post-flame zone.

Original languageEnglish (US)
Article number023115
JournalApplied Physics Letters
Volume104
Issue number2
DOIs
StatePublished - Jan 13 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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