物理学报2012，Vol.61Issue(6)：336-340,5.
激光钝化对熔石英修复后损伤性能影响的实验研究
Influence of laser passivation on fused silica damage after CO_2 laser mitigation
摘要
Abstract
A 10.6μm CO_2 big size laser beam is used to passivate the ablation deposit on surface of damage site which is repaired with single laser pulse.When the irradiated region is placed on front surface,modulation by 355 nm UV ns laser pulse is inhibited effectively; when the irradiated region is situated on rear surface,the initial damage threshold exceeds the substrate initial damage threshold. Second repair makes the thermal stress distribution enlarged obviously and the thermal stress magnitude weakened.The damage growth examination shows that once thermal stress is released,the initial phase damage growth exhibits an exponential tendency and as shoot number increases the damage size approaches to a constant value.关键词
CO_2激光/辐照/损伤阈值/损伤增长Key words
CO_2 laser/radiation/damage threshold/damage growth分类
数理科学引用本文复制引用
李熙斌,袁晓东,贺少勃,吕海兵,王海军,向霞,郑万国..激光钝化对熔石英修复后损伤性能影响的实验研究[J].物理学报,2012,61(6):336-340,5.基金项目
国家高技术研究发展计划（863计划） （）
国防预研基金（批准号：426020606）资助的课题 （）
