Comparison between femtosecond and nanosecond laser ablation of solution samples applied on a substrate

We have compared time-of-flight mass spectra for an inorganic and a biological macromolecular sample applied on a silicon substrate obtained by laser ablation with femtosecond and nanosecond lasers. Many fragment peaks appeared in the mass spectra for nanosecond laser ablation. In contrast, the samp...

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Bibliographic Details
Published in:Journal of physics. Conference series 2007-04, Vol.59 (1), p.372-375
Main Authors: Kato, T, Kobayashi, T, Matsuo, Y, Kurata-Nishimura, M, Oyama, R, Matsumura, Y, Yamamoto, H, Kawai, J, Hayashizaki, Y
Format: Article
Language:English
Subjects:
Ablation
Atomizing
Isotopes
Laser ablation
Lasers
Mass spectra
Mass spectroscopy
Physics
Silicon substrates
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Summary:We have compared time-of-flight mass spectra for an inorganic and a biological macromolecular sample applied on a silicon substrate obtained by laser ablation with femtosecond and nanosecond lasers. Many fragment peaks appeared in the mass spectra for nanosecond laser ablation. In contrast, the samples were effectively atomized to monoatomic ions by femtosecond laser ablation. We find that femtosecond laser ablation has a great advantage in an elemental analysis of solution samples on a substrate. Silicon clusters Sin (up to n 6) from the substrate were also observed.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/59/1/078