%0 Journal Article
%T Study on the morphology of laser induced damage in K9 glass by focused nanosecond pulse<br>纳秒激光在K9玻璃中聚焦的损伤形貌研究
%A Han Jing-Hu
%A Feng Guo-Ying
%A Yang Li-Ming
%A Zhang Qiu-Hui
%A Xie Xu-Dong
%A Zhu Qi-Hua
%A Zhou Shou-Huan
%A <br>韩敬华
%A 冯国英
%A 杨李茗
%A 张秋慧
%A 谢旭东
%A 朱启华
%A 周寿桓
%J 物理学报
%D 2008
%I 
%X The characteristics of laser induced damage morphology in the bulk of the K9 glass caused by focused nanosecond laser pulse is analyzed in detail. The damage shape looks like a spindle with a large front-end and its thickness gradually decreases on going to the rear end. According to the experimental results, the damaged range can be divided into four zones, namely the filamentary plasma channel, fractures, the fusion zone and the region of varying refractive index. The function of laser pulse energy deposition in space and the expansion pressure of shock wave are deduced, and the corresponding damage morphology is analyzed based on the spatial distribution of pressure. The theoretical analysis agrees with the experimental results.
%K 激光损伤形貌
%K 移动损伤模型
%K 冲击波
%K 激光能量沉积
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=A06DBF3D50F8BBAE4790F4273D4204F2&yid=67289AFF6305E306&vid=11B4E5CC8CDD3201&iid=9CF7A0430CBB2DFD&sid=1195A96689BC29D1&eid=26E6FBE2799C88EA&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=0