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Elliptic paraboloid model is established, and three-dimensional finite-difference time-domain method has been employed to simulate the field distribution of discontinuous crack with different shapes and positions in fused silica output subsurface under 355 nm laser incidence. Results show that both electric field intensity and the number of enhanced points (with |E| 2.0 V/m) follow a trend of first increasing and then decreasing with the increase of collinear axis length of ellipsoid. The light intensity enhancement factor reaches a maximal value when the axial ratio is 1.1 to 1.2. If parallel collinear axis length of ellipsoid increases, the electric field intensity first increases gradually, and then becomes stable when the axial ratio is 0.53. At the same time, the number of enhanced points grows rapidly.
[1] Ge D B, Yan Y B 2005 FDTD Method for Electromagnetic Waves (Xi'an: Xidian University Press) pp2,67 (in Chinese) [葛德彪, 闫玉波 2005 电磁波时域有限差分方法 (西安: 西安电子科技大学出版社) 第2,67页]
[2] Campbell J H, Hawley-Fedder R A, Stolz C J, Menapace J A, Borden M R, Whitman P K, Yu J, Runkel M J, Riley M O, Feit M D, Hackel R P 2004 Proc. SPIE 5341 84
[3] Huang W Q 2009 MS Dissertation (Mianyang: China Academy of Engineering Physics) (in Chinese) [黄晚晴 2009 硕士学位论文(绵阳:中国工程物理研究院)]
[4] Pégon P M, Germain C V, Rorato Y R, Belleville P F, Lavastre E 2004 Proc. SPIE 5250 170
[5] Hua J R 2010 MS Dissertation (Chengdu: University of Electronic Science and Technology of China) (in Chinese) [花金荣 2010 硕士学位论文 (成都: 电子科技大学)]
[6] Hua J R, Li L, Xiang X, Zu X T 2011 Acta Phys. Sin. 60 044206 (in Chinese) [花金荣, 李莉, 向霞, 祖小涛 2011 60 044206]
[7] Wang F R, Huang J, Liu H J, Zhou X D, Jiang X D, Wu W D, Zheng W G 2010 Acta Phys. Sin. 59 5122 (in Chinese) [王凤蕊, 黄进, 刘红婕, 周信达, 蒋晓东, 吴卫东, 郑万国2010 59 5122]
[8] Génin F Y, Salleo A, Pistor T V 2001 J. Opt. Soc. Am. A 18 2607
[9] Zhang C L, Wang Z G, Xiang X, Liu C M, Li L, Yuan X D, He S B, Zu X T 2012 Acta Phys. Sin. 61 114210 (in Chinese) [章春来, 王治国, 向霞, 刘春明, 李莉, 袁晓东, 贺少勃, 祖小涛2012 61 114210]
[10] Wang Y 2005 MS Dissertation (Mianyang: China Academy of Engineering Physics) (in Chinese) [王毅2005硕士学位论文 (绵阳: 中国工程物理研究院)]
[11] Jiang Y, Yuan X D, Xiang X 2010 J. Optoelectron. Laser 21 1519 (in Chinese) [蒋勇, 袁晓东, 向霞2010光电子·激光 21 1519]
[12] Suratwala T I, Miller P E, Bude J D, Steele W A, Shen N, Monticelli M V, Feit M D, Laurence T A, Norton M A, Carr C W, Wong L L 2011 J. Am. Ceram. Soc. 94 416
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[1] Ge D B, Yan Y B 2005 FDTD Method for Electromagnetic Waves (Xi'an: Xidian University Press) pp2,67 (in Chinese) [葛德彪, 闫玉波 2005 电磁波时域有限差分方法 (西安: 西安电子科技大学出版社) 第2,67页]
[2] Campbell J H, Hawley-Fedder R A, Stolz C J, Menapace J A, Borden M R, Whitman P K, Yu J, Runkel M J, Riley M O, Feit M D, Hackel R P 2004 Proc. SPIE 5341 84
[3] Huang W Q 2009 MS Dissertation (Mianyang: China Academy of Engineering Physics) (in Chinese) [黄晚晴 2009 硕士学位论文(绵阳:中国工程物理研究院)]
[4] Pégon P M, Germain C V, Rorato Y R, Belleville P F, Lavastre E 2004 Proc. SPIE 5250 170
[5] Hua J R 2010 MS Dissertation (Chengdu: University of Electronic Science and Technology of China) (in Chinese) [花金荣 2010 硕士学位论文 (成都: 电子科技大学)]
[6] Hua J R, Li L, Xiang X, Zu X T 2011 Acta Phys. Sin. 60 044206 (in Chinese) [花金荣, 李莉, 向霞, 祖小涛 2011 60 044206]
[7] Wang F R, Huang J, Liu H J, Zhou X D, Jiang X D, Wu W D, Zheng W G 2010 Acta Phys. Sin. 59 5122 (in Chinese) [王凤蕊, 黄进, 刘红婕, 周信达, 蒋晓东, 吴卫东, 郑万国2010 59 5122]
[8] Génin F Y, Salleo A, Pistor T V 2001 J. Opt. Soc. Am. A 18 2607
[9] Zhang C L, Wang Z G, Xiang X, Liu C M, Li L, Yuan X D, He S B, Zu X T 2012 Acta Phys. Sin. 61 114210 (in Chinese) [章春来, 王治国, 向霞, 刘春明, 李莉, 袁晓东, 贺少勃, 祖小涛2012 61 114210]
[10] Wang Y 2005 MS Dissertation (Mianyang: China Academy of Engineering Physics) (in Chinese) [王毅2005硕士学位论文 (绵阳: 中国工程物理研究院)]
[11] Jiang Y, Yuan X D, Xiang X 2010 J. Optoelectron. Laser 21 1519 (in Chinese) [蒋勇, 袁晓东, 向霞2010光电子·激光 21 1519]
[12] Suratwala T I, Miller P E, Bude J D, Steele W A, Shen N, Monticelli M V, Feit M D, Laurence T A, Norton M A, Carr C W, Wong L L 2011 J. Am. Ceram. Soc. 94 416
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