Andere Publikation (z.B. Zeitungsartikel, populärwissenschaftliche Darstellung)
Theoretical description of the ultrafast ablation of diamond and graphite: dependence of thresholds on pulse duration



Details zur Publikation
Autor(inn)en:
Jeschke, H.; Garcia, M.
Verlag:
ELSEVIER SCIENCE BV
Publikationsjahr:
2002
Zeitschrift:
Applied Surface Science
Seitenbereich:
107-113
Jahrgang/Band:
197
Erste Seite:
107
Letzte Seite:
113
Seitenumfang:
7
ISSN:
0169-4332

Zusammenfassung, Abstract
A theoretical description of the ultrafast ablation of diamond and graphite is presented. Laser induced lattice deformations and melting are described with the help of molecular dynamics simulations on time dependent potential energy surfaces derived from a microscopic electronic Hamiltonian. Thermalization effects are explicitly taken into account. We calculate the ablation thresholds as a function of the pulse duration for femtosecond pulses. For both materials we obtain smoothly increasing thresholds for increasing duration. The damage and ablation mechanisms are discussed. (C) 2002 Elsevier Science B.V All rights reserved.


Schlagwörter
dependence of thresholds, pulse duration, ultrafast ablation


Autor(inn)en / Herausgeber(innen)

Zuletzt aktualisiert 2019-25-07 um 16:00

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