TITLE

Coulomb explosion in femtosecond laser ablation of Si(111)

AUTHOR(S)
Roeterdink, W. G.; Juurlink, L. B. F.; Vaughan, O. P. H.; Dura Diez, J.; Bonn, M.; Kleyn, A. W.
PUB. DATE
June 2003
SOURCE
Applied Physics Letters;6/9/2003, Vol. 82 Issue 23, p4190
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The ablation of ionized silicon is studied using near-infrared femtosecond laser pulses in the fluence regime from 1 to 9 J/cm[SUP2]. Two major peaks are observed in the mass spectrum corresponding to Si[SUP+] and Si[SUP2+]. In the time-of-flight transients of Si[SUP+], a bimodal structure is observed. The fast Si[SUP+] peak corresponds to a velocity half of that observed for Si[SUP2+]. This momentum scaling is clearly indicative of a Coulomb explosion.
ACCESSION #
9924660

 

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