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The micro subsurface cracks of fused silica etched with HF solution were recorded using atomic force microscope (AFM) and optical microscope. The damage characteristics of cracks with different structures were studied. Experimental results show that after HF etching, the cracks cross section turns into cosine pattern, and its laser induced damage threshold (LIDT) is not determined by the individual breadth or depth parameters, but by the breadth depth ratio of the crack cross section. The curve of LIDT versus the cracks breadth depth ratio was experimentally obtained. Finite difference time domain algorithm was used to calculate the electric field intensity distribution in the vicinity of a crack with cosine cross section, and the theoretical results agree well with the experimental ones.
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Keywords:
- fused silica /
- rear-surface crack /
- breadth depth ratio /
- damage property
[1] Chen X Q, Zu X T, Zheng W G, Jiang X D, Lü H B, Ren H, Zhang Y Z, Liu C M 2006 Acta Phys. Sin. 55 1206 (in Chinese) [陈习权、祖小涛、郑万国、蒋晓东、吕海兵、任 寰、张艳珍、刘春明 2006 物理学报 55 1206]
[2] Sun C W, Lu Q S, Fan Z X 2002 Laser Irradiation Effect (Beijing:National Defence Industry Press)280—286 (in Chinese)[孙承伟、陆启生、范正修 2002 激光辐照效应 (北京: 国防工业出版社)第280—286页]
[3] Laser and Particle Beams 17 67 (in Chinese) [王 毅、许 乔、柴立群、陈 宁、朱湘琴 2005 强激光与粒子束 17 67]
[4] Bloenbergen N 1973 Appl. Opt. 12 661
[5] Ge 'nin F Y, Salleo A, Pistor T V 2001 J. Opt. Soc. Am. A 18 2607
[6] Yao X, Gao F H, Li J F, Zhang Y X, Wen S L, Guo Y K 2008 Acta Phys. Sin. 57 4891 (in Chinese) [姚 欣、高福华、李剑峰、张怡霄、温圣林、郭永康 2008 物理学报 57 4891]
[7] Stevens-Kalceff M A, Wong J 2005 J. Appl. Phys. 97 113519
[8] Wang Y, Xu Q, Chai L Q, Chen N, Zhu X Q 2005 High Power
[9] Salleo A, Génin F Y, Yoshiyama J, Stolz C J, Kozlowski M R 1998 Proc. SPIE 3244 341
[10] Neauport J, Lamaignere L, Bercegol H, Pilon F, Birolleau J C 2005 Opt. Express 13 10163
[11] Ge 'nin F Y, Kozloski M R, Feit M D 1998 LLNLReport UCRL-ID-0130003 1
[12] Feit M D, Rubenchik A M 2002 Proc. SPIE 4679 321
[13] Ge D B, Yan Y B 2002 Electromagnetic Wave and FDTD (Xian: Xidian University Press) (in Chinese) [葛德彪、闫玉波 2002 电磁波时域有限差分方法 (西安: 西安电子科技大学出版社)]
[14] Prasad R R, Bruere J R, Peterson J E, Halpin J M, Borden M R, Hackel R P 2004 Proc. SPIE 5273 288
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[1] Chen X Q, Zu X T, Zheng W G, Jiang X D, Lü H B, Ren H, Zhang Y Z, Liu C M 2006 Acta Phys. Sin. 55 1206 (in Chinese) [陈习权、祖小涛、郑万国、蒋晓东、吕海兵、任 寰、张艳珍、刘春明 2006 物理学报 55 1206]
[2] Sun C W, Lu Q S, Fan Z X 2002 Laser Irradiation Effect (Beijing:National Defence Industry Press)280—286 (in Chinese)[孙承伟、陆启生、范正修 2002 激光辐照效应 (北京: 国防工业出版社)第280—286页]
[3] Laser and Particle Beams 17 67 (in Chinese) [王 毅、许 乔、柴立群、陈 宁、朱湘琴 2005 强激光与粒子束 17 67]
[4] Bloenbergen N 1973 Appl. Opt. 12 661
[5] Ge 'nin F Y, Salleo A, Pistor T V 2001 J. Opt. Soc. Am. A 18 2607
[6] Yao X, Gao F H, Li J F, Zhang Y X, Wen S L, Guo Y K 2008 Acta Phys. Sin. 57 4891 (in Chinese) [姚 欣、高福华、李剑峰、张怡霄、温圣林、郭永康 2008 物理学报 57 4891]
[7] Stevens-Kalceff M A, Wong J 2005 J. Appl. Phys. 97 113519
[8] Wang Y, Xu Q, Chai L Q, Chen N, Zhu X Q 2005 High Power
[9] Salleo A, Génin F Y, Yoshiyama J, Stolz C J, Kozlowski M R 1998 Proc. SPIE 3244 341
[10] Neauport J, Lamaignere L, Bercegol H, Pilon F, Birolleau J C 2005 Opt. Express 13 10163
[11] Ge 'nin F Y, Kozloski M R, Feit M D 1998 LLNLReport UCRL-ID-0130003 1
[12] Feit M D, Rubenchik A M 2002 Proc. SPIE 4679 321
[13] Ge D B, Yan Y B 2002 Electromagnetic Wave and FDTD (Xian: Xidian University Press) (in Chinese) [葛德彪、闫玉波 2002 电磁波时域有限差分方法 (西安: 西安电子科技大学出版社)]
[14] Prasad R R, Bruere J R, Peterson J E, Halpin J M, Borden M R, Hackel R P 2004 Proc. SPIE 5273 288
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