Coulomb explosion in ultrashort pulsed laser ablation of Al2O3

R. Stoian; D. Ashkenasi; A. Rosenfeld; E. E.B. Campbell

doi:10.1103/PhysRevB.62.13167

Coulomb explosion in ultrashort pulsed laser ablation of Al₂O₃

R. Stoian, D. Ashkenasi, A. Rosenfeld, E. E.B. Campbell

Department of Physics

Research output: Contribution to journal › Article › peer-review

319 Scopus citations

Abstract

Coulomb explosion (CE) is identified as the mechanism of ion ejection under low fluence ultrashort pulse laser ablation of crystalline Al₂O₃. The ion momenta are equal during "gentle" ablation. This is explained by impulsive CE from the surface region lasting ∼1 ps. The onset of "strong" ablation leads to a decrease in the measured ion velocities. The kinetic energies rather than the momenta of the ions become equal. This regime is associated with strong plasma light emission and crater formation.

Original language	English
Pages (from-to)	13167-13173
Number of pages	7
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	62
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevB.62.13167
State	Published - 15 Nov 2000

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10.1103/PhysRevB.62.13167

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title = "Coulomb explosion in ultrashort pulsed laser ablation of Al2O3",

abstract = "Coulomb explosion (CE) is identified as the mechanism of ion ejection under low fluence ultrashort pulse laser ablation of crystalline Al2O3. The ion momenta are equal during {"}gentle{"} ablation. This is explained by impulsive CE from the surface region lasting ∼1 ps. The onset of {"}strong{"} ablation leads to a decrease in the measured ion velocities. The kinetic energies rather than the momenta of the ions become equal. This regime is associated with strong plasma light emission and crater formation.",

author = "R. Stoian and D. Ashkenasi and A. Rosenfeld and Campbell, {E. E.B.}",

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AU - Stoian, R.

AU - Ashkenasi, D.

AU - Rosenfeld, A.

AU - Campbell, E. E.B.

PY - 2000/11/15

Y1 - 2000/11/15

N2 - Coulomb explosion (CE) is identified as the mechanism of ion ejection under low fluence ultrashort pulse laser ablation of crystalline Al2O3. The ion momenta are equal during "gentle" ablation. This is explained by impulsive CE from the surface region lasting ∼1 ps. The onset of "strong" ablation leads to a decrease in the measured ion velocities. The kinetic energies rather than the momenta of the ions become equal. This regime is associated with strong plasma light emission and crater formation.

AB - Coulomb explosion (CE) is identified as the mechanism of ion ejection under low fluence ultrashort pulse laser ablation of crystalline Al2O3. The ion momenta are equal during "gentle" ablation. This is explained by impulsive CE from the surface region lasting ∼1 ps. The onset of "strong" ablation leads to a decrease in the measured ion velocities. The kinetic energies rather than the momenta of the ions become equal. This regime is associated with strong plasma light emission and crater formation.

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

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ER -

Coulomb explosion in ultrashort pulsed laser ablation of Al2O3

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Coulomb explosion in ultrashort pulsed laser ablation of Al₂O₃