THE ROLE OF EXCITED SPECIES IN UV-LASER MATERIALS ABLATION .1. PHOTOPHYSICAL ABLATION OF ORGANIC POLYMERS

被引：54
|
作者：
LUKYANCHUK, B
BITYURIN, N
ANISIMOV, S
BAUERLE, D
机构：
[1] Angewandte Physik, Johannes-Kepler-Universität Linz, Linz
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1993年 / 57卷 / 04期
关键词：
D O I：
10.1007/BF00332291
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
UV-laser ablation is described in terms of a two-level system in which the excitation energy is dissipated via stimulated emission, thermal relaxation, and activated desorption of excited species. For thermal relaxation times t(T) > 10)(-9) s and DELTAE* << DELTAE (activation energies for excited-state and ground-state species) the model predicts high ablation rates at moderate surface temperatures, typically below 2000-degrees-C.
引用
收藏
页码：367 / 374
页数：8
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