Abstract
Neutral silicon clusters Sin (up to n=7) and their cations Sin+ (up to n=10) have been produced by femtosecond laser ablation of bulk silicon in vacuum and investigated using time-of-flight mass spectrometry. Two populations of the Sin+ clusters with different velocity and abundance distributions in the ablation plume have been clearly distinguished. Possible mechanisms of cluster formation (Coulomb explosion, gas-phase condensation, phase explosion) are discussed.
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52.38.Mf; 61.46.+w; 79.20.Ds
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Bulgakov, A., Ozerov, I. & Marine, W. Silicon clusters produced by femtosecond laser ablation: non-thermal emission and gas-phase condensation. Appl. Phys. A 79, 1591–1594 (2004). https://doi.org/10.1007/s00339-004-2856-y
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DOI: https://doi.org/10.1007/s00339-004-2856-y