UNIFIED APPROACH TO POLYMER ABLATION AND DESORPTION OF NEUTRAL ATOMS FROM SURFACES OF NONMETALLIC COMPOUNDS

被引：0
|
作者：
SINGH, J [1 ]
ITOH, N [1 ]
机构：
[1] NAGOYA UNIV,FAC SCI,DEPT PHYS,CHIKUSA KU,NAGOYA,AICHI 464,JAPAN
来源：
JOURNAL OF LUMINESCENCE | 1990年 / 45卷 / 1-6期
关键词：
Atoms--Desorption - Laser Beams--Effects - Semiconductor Materials - Surfaces;
D O I：
10.1016/0022-2313(90)90172-8
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A unified microscopic theory is developed here to study processes of polymer ablation and desorption of neutral atoms from surfaces of non-metallic compounds which occur due to laser irradiation. In high excitonic density an excited state having a pair of excitons with their two holes localised on the same bond becomes energitically more favourable, and the bond gets etched. Results obtained here agree quite well with those of experiments and phenomenological theories. © 1990.
引用
收藏
页码：286 / 288
页数：3
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