Bulk model of laser ablation of polymers

被引：37

作者：

Bityurin, N ^{[1
]}

Arnold, N

Luk'yanchuk, B

Bauerle, D

机构：

[1] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603600, Russia

[2] Johannes Kepler Univ, A-4040 Linz, Austria

[3] Russian Acad Sci, Inst Gen Phys, Moscow 117942, Russia

来源：

APPLIED SURFACE SCIENCE | 1998年 / 127卷

基金：

奥地利科学基金会; 俄罗斯基础研究基金会;

关键词：

laser ablation; polymer; modelling;

D O I：

10.1016/S0169-4332(97)00627-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The model of laser ablation driven by a bulk photothermal reaction is considered. Stationary wave solutions are obtained and analyzed. In the case of a simple photothermal bond-breaking reaction, it is possible to reduce this bulk ablation model to the surface evaporation model with some apparent activation energy. A more complicated model of laser ablation, taking into consideration a photothermal modification of broken bonds within the bulk of material. is also studied. The existence of the second threshold related to multiple-shot and long pulse irradiation experiments has been demonstrated. It is shown that the effect of modification on the ablation kinetics qualitatively depends on the interrelation between activation energies of two considered bulk reactions. (C) 1998 Elsevier Science B.V.

引用

页码：164 / 170

页数：7

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