%0 Journal Article
%T Effect of thermal stresses on fused silica surface on the laser induced damage<br>熔石英表面热致应力对激光损伤行为影响的研究
%A Liu Hong-Jie
%A Huang Jin
%A Wang Feng-Rui
%A Zhou Xin-D
%A Jiang Xiao-Dong
%A Wu Wei-Dong
%A <br>刘红婕
%A 黄进
%A 王凤蕊
%A 周信达
%A 蒋晓东
%A 吴卫东
%J 物理学报
%D 2010
%I 
%X To study the effect of the thermal stresses on the optics, experiment is performed to measure the damage threshold of the two fused silica samples with one annealed to eliminate thermal stresses while the other not. The measurement includes the effects of the thermal stresses on the initial damage threshold of the fused silica, the damage growth threshold, and the damage growth laws. The results show that the damage threshold decreases as the thermal stresses increase, and the damage induced by the laser is accelerated by the thermal stresses. For the same laser intensity, the damage growth factor is higher for the area with higher thermal stresses, but the damage growth still obeys the exponential increase rule and no obvious effect of the thermal stresses is found on the damage growth threshold. The study here will determine to some extent whether the technology of the CO2 laser pretreatment can be applied to the large-aperture optics or not.
%K stresses
%K laser damage
%K fused quartz
%K CO2 laser pretreatment<br>应力，
%K 激光损伤，
%K 熔石英，
%K CO2激光预处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=E3660CC7FCACD872225ED185BA972009&yid=140ECF96957D60B2&vid=6AC2A205FBB0EF23&iid=0B39A22176CE99FB&sid=9A66D940867B74F7&eid=AF8A4A632EC02431&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=0