多脉冲激光对K9玻璃的表面损伤实验研究

张秋慧; 冯国英; 韩敬华; 贾俊; 杨李茗; 朱启华; 谢旭东

强激光与粒子束, 2008, 20 (1): 0062, 网络出版: 2010-05-27

多脉冲激光对K9玻璃的表面损伤实验研究

Investigation of laser induced damage on K9 glass surface using multi-pulse laser

论文大纲

张秋慧 ^1,*冯国英 ¹韩敬华 ¹贾俊 ¹杨李茗 ²朱启华 ²谢旭东 ²

作者单位

¹ 四川大学电子信息学院，成都 610064

² 中国工程物理研究院激光聚变研究中心，四川绵阳 621900

激光诱导损伤 K9玻璃多脉冲纳秒激光激光支持爆炸波 Laser induced damage K9 glass Multi-pulse nanosecond laser Laser-supported detonation wave

摘要

实验研究了波长为1064 nm、脉宽为10ns、重复频率为1 Hz的激光脉冲对K9玻璃的表面损伤特点，给出了脉冲透过能量随激光脉冲作用次数变化的规律。采用3维立体显微镜对损伤形貌进行观察，发现K9玻璃的损伤表面呈环状分布，分为烧蚀区、微裂纹区和断裂区。随着激光脉冲个数的增加，损伤由点状破坏演变为损伤区，微裂纹逐渐增长，损伤面积逐渐增大。基于激光支持的爆轰波理论分析，激光与脆性材料的相互作用可引起微裂纹的大量增长。在多脉冲激光的作用下，K9玻璃损伤的累积效应明显，表面损伤阈值明显降低，表面裂纹增长明显，损伤面积逐渐增大；但随着激光脉冲的继续增加，这种损伤趋于稳定。

Abstract

Experimental study of characteristics of laser induced damage on the K9 glass surface,irradiated by Nd∶YAG laser operating at 1.064 μm wavelength and approximately 10 ns pulse duration and 1 Hz repetition rate,have been made. The change law of laser pulse output energy versus the repeat number of laser shots was investigated. Stereo microscope was employed to observe laser induced damage morphology after sigle-shot and multi-shot laser irradiation. The ripple damage on the K9 glass surface could be obviously observed,and the failure surface can be devided into three parts: ablation zone,microcrack zone and brittle fracture zone. After the first shot small damage spots appeared on the K9 glass surface;after multi-shot irradiation,microcracks and damage area increased gradually with the number of shots. Based on the laser-supported detonation wave theory,the interaction of high-intensity laser with K9 glass can induce a lot of microcracks in brittle material. Accumulation of multi-shot laser induced damage in K9 glass is obvious,the laser induced damage threshold of K9 glass surface is distinctly reduced,and the growing of microcrack zone and damage area are remarkable.

参考文献

[1] Birnbaum M. Semiconductor surface damage produced by ruby laser[J]. J Appl Phys,1965,36:3688.

[2] Fan C H,Sun J,Longtin J P. Plasma absorption of femtosecond laser pulses in dielectrics[J]. Journal of Heat Transfer,2002,124(4): 275-283.

[3] Natoli J Y,Gallais L,Akhouayri H,et al. Laser-induced damage of materials in bulk,thin-film,and liquid forms[J]. Appl Opt,2002,41(16):3156-3166.

[4] 甘荣兵，林理彬，卢勇，等．UBK7玻璃后表面缺陷诱导体内激光损伤[J]．强激光与粒子束，2001，13 (5)：603-606．

Gan R B,Lin L B,Lu Y,et al. Laser induced bulk damage of UBK7 glass owing to its rear-surface defects. High Power Laser and Particle Beams,2001,13(5): 603-606

[5] Fan C H,Longtin J P. Modeling optical breakdown in dielectrics during ultrafast laser processing[J]. Appl Opt,2001,40(18): 3124-3131.

[6] 郭少锋，陆启生，邓少永，等．ns激光对K9玻璃的破坏实验[J]．强激光与粒子束，2004，16(7)：817-820．

Guo S F,Lu Q S,Deng S Y,et al. Experimental study on ns pulsed laser induced damage in K9 glass. High Power Laser and Particle Beams,2004,16(7): 817-820

[7] 王涛，赵元安，黄建兵，等．重复率激光作用下光学薄膜损伤的累积效应[J]．强激光与粒子束，2005，17(s0):171-174．

Wang T,Zhao Y A,Huang J B,et al. Accumulation effect of multi-shot laser-induced damage to optical coatings. High Power Laser and Particle Beams,2005,17(s0): 171-174

[8] Feit M D,Rubenchik A M,Faux D R,et al. Surface contamination initiated laser damage[C]//The 2^nd Annual International Conference on Solid-State Laser for Application to ICF. 1996.

[9] Feit M D,Rubenchik M,Faux D R,et al. Modeling of laser damage initiated by surface contamination[C]//28^th Annual Symposium on Optical Materials for High Power Laser'96. 1996.

[10] 陆建，倪晓武，贺安之．激光与材料相互作用物理学[M]．北京：机械工业出版社，1996．

Lu J,Ni X W,He A Z. Physics of the interaction for laser and materials. Beijing: China Machine Press,1996

[11] Phuoc T X. An experimental and numerical study of laser-induced spark in air[J]. Optics and Lasers in Engineering,2005,43:113-129.

[12] Raizer Y P. Heating of a gas by a powerful light pulse[J]. Soviet Physics JETP,1965,21:1009-1017.

[13] 史坦浮斯J E．玻璃的物理性质[M]．北京：中国工业出版社，1953．

Stanworth J E. Physical characteristics of glass. Beijing: China Industry Press,1953

[14] 贺红亮，经福谦，金孝刚，等．冲击波极端条件下玻璃的细观结构破坏[J]．高压物理学报，1998，12(4)．241-249．

He H L,Jing F Q,Jin X G,et al. Microstructure damage of glasses under shock wave compression. Chinese Journal of High Pressure Physics,1998,12(4):241-249

张秋慧, 冯国英, 韩敬华, 贾俊, 杨李茗, 朱启华, 谢旭东. 多脉冲激光对K9玻璃的表面损伤实验研究[J]. 强激光与粒子束, 2008, 20(1): 0062. ZHANG Qiu-hui, FENG Guo-ying, HAN Jing-hua, JIA Jun, YANG Li-ming, ZHU Qi-hua, XIE Xu-dong. Investigation of laser induced damage on K9 glass surface using multi-pulse laser[J]. High Power Laser and Particle Beams, 2008, 20(1): 0062.

多脉冲激光对K9玻璃的表面损伤实验研究

关于本站 Cookie 的使用提示

全站搜索

多脉冲激光对K9玻璃的表面损伤实验研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索