Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1240100 | Spectrochimica Acta Part B: Atomic Spectroscopy | 2011 | 4 Pages |
Abstract
Femtosecond laser induced breakdown spectroscopy (LIBS) was used to identify the spatial resolution limitations and assess the minimal detectable mass restrictions in laser-ablation based chemical analysis. The atomic emission of sodium (Na) and potassium (K) dopants in transparent dielectric Mica matrices was studied, to find that both these elements could be detected from 450 nm diameter ablation craters, full-width-at-half-maximum (FWHM). Under optimal conditions, mass as low as 220 ag was measured, demonstrating the feasibility of using laser-ablation based chemical analysis to achieve high spatial resolution elemental analysis in real-time and at atmospheric pressure conditions.
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Authors
Vassilia Zorba, Xianglei Mao, Richard E. Russo,