Characterization of ejected fused silica particles following surface breakdown with nanosecond pulses

Rajesh N. Raman, Selim Elhadj, Raluca A. Negres, Manyalibo J. Matthews, Michael D. Feit, Stavros G. Demos

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

The light emission produced near the surface of fused silica following laser-induced breakdown on the exit surface was spatially and spectrally resolved. This signal is in part generated by ejected particles while traveling outside the hot ionized region. The thermal emission produced by the particles can be separated from the plasma emission near the surface and its spectral characteristics provide information on the temperature of the particles after ejection from the surface. Assuming the emission is thermal in origin, data suggest an initial average temperature on the order of at least 0.5 eV.

Original languageEnglish (US)
Pages (from-to)27708-27724
Number of pages17
JournalOptics Express
Volume20
Issue number25
DOIs
StatePublished - Dec 3 2012
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Raman, R. N., Elhadj, S., Negres, R. A., Matthews, M. J., Feit, M. D., & Demos, S. G. (2012). Characterization of ejected fused silica particles following surface breakdown with nanosecond pulses. Optics Express, 20(25), 27708-27724. https://doi.org/10.1364/OE.20.027708