Ultra-short laser ablation of metals and semiconductors: evidence of ultra-fast Coulomb explosion

被引：70

作者：

Dachraoui, H ^{[1
]}

Husinsky, W ^{[1
]}

Betz, G ^{[1
]}

机构：

[1] Vienna Univ Technol, Inst Allgemeine Phys, A-1040 Vienna, Austria

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2006年 / 83卷 / 02期

关键词：

D O I：

10.1007/s00339-006-3499-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied ultra-fast laser ablation of Si and a metal via the neutral and ion yield, the energy distribution of emitted neutrals and the charge distribution as a function of the laser pulse width. Two processes, one leading to the ejection of fast (3-7 eV), the other to slow thermal particles, can be identified. The origin of the first process can be correlated with laser pulse widths (or pump-probe delays) and processes on a time scale below 100 fs. Results for Si confirm recent findings for Coulomb explosion (CE) and we show for the first time that CE exists as a mechanism of material removal from metals for ultra-short laser pulses.

引用

页码：333 / 336

页数：4

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