不同脉冲宽度355 nm波长激光诱导DKDP晶体损伤特性

研究了用于三倍混频的Ⅱ类DKDP晶体在35 ps，850 ps和7.6 ns三种不同脉宽355 nm波长激光作用下的损伤特性。实验对比分析了损伤阈值、概率和损伤针点形貌、尺寸和密度，并根据损伤阈值及概率得到前驱体阈值及密度。结果表明，前驱体的激光能量吸收量与脉宽线性相关。35 ps激光作用下DKDP有一种前驱体吸收激光能量形成熔融状损伤针点。850 ps激光作用下有两种前驱体吸收激光能量并产生力学破坏形成中心熔融四周断裂的损伤针点。7.6 ns激光作用下只有一种前驱体吸收激光能量，并且形成的损伤针点与850 ps对应的损伤针点有相同特征。

Abstract

This paper researches on laser damage characteristics of Ⅱ-type DKDP crystals used for nonlinear frequency conversion of third harmonic under 355 nm laser with 35 ps, 850 ps and 7.6 ns pulse duration. The damage threshold, probability and the damage pinpoints morphology, density, size under different pulse duration are compared and analyzed. The results show that the laser energy absorption of the precursors is linearly related to the pulse duration. Under 35 ps laser, one type of precursors absorbs laser energy, which results in melting damage pinpoints. Under 850 ps laser, two types of precursors absorb laser energy and generate mechanical response form damaged pinpoints made of melting center point and surrounded by cracks. Under 7.6 ns laser, only one type of precursors takes effect and shares the same pinpoints characteristics with 850 ps laser.

参考文献

[1] Speath M L, Manes K R, Kalantar D H, et al. Description of the NIF Laser［J］. Fusion Sci Technol, 2016, 69(1):25-145.

[2] De Yoreo J J, Bumham A K, Whitman P K. Developing KH2PO4 crystals for the world’s most powerful laser［J］. Int Mater Rev, 2002, 47(3):113-152.

[3] Reyne S, Duchateau G, Natoli L, et al. Multi-wawelength study of nanosecond laser-induced bulk damage morphology in KDP crystals［J］. Appl Phys A, 2015, 119(4):1317-1326.

[4] Demos S G, DeMange P, Negres R A, et al. Investigation of the electronic and physical properties of defect structures responsible for laser-induced damage in DKDP crystals［J］. Opt Express, 2010, 18(13):13788-13804.

[5] De Mange P, Negres R A, Radousky C W, et al, Laser-induced defect reactions governing damage initiation in DKDP crytals［J］. Opt Express, 2006, 14(12):5313-5328.

[6] 单翀,赵元安,张喜和,等.基于高斯脉冲激光空间分辨测量光学元件表面激光损伤阈值研究［J］.中国激光, 2018, 45:0104002.(Shan Chong, Zhao Yuanan, Zhang Xihe, el al. Study on laser damage threshold of optical element surface based on Gaussian pulsed laser spatial resolution. Chinese Journal of Lasers, 2018, 45:0104002)

[7] 王岳亮.Ⅰ类KDP和Ⅱ类DKDP晶体激光损伤机理及激光预处理特性研究［D］.上海：中国科学院上海光学精密机械研究所, 2017:24.(Wang Yueliang. Laser damage mechanisms and laser conditioning properties in Ⅰ-cut KDP and Ⅱ-cut DKDP crystals. Shanghai: Shanghai Institute of Optics and Fine Mechanics, 2017:24)

[8] Fujioka K, Matsuo S, Kanabe T, et al. Optical properties of rapidly grown KDP crystal improved by thermal conditioning［J］. Journal of Crystal Growth, 1997, 181(3):265-271.

[9] Pritula I M, Kolybayeva M I, Salo V I, et al. Annealing of KDP crystals in vacuum and under pressure［C］//Proc of SPIE. 1997, 2966:634-639.

[10] Swain J, Stokowaki S, Milam D, et al. Improving the bulk laser damage resistance of potassium dihydrogen crystals by pulsed laser irradiation［J］. Applied Physics Letters, 1982, 40(4):350-352.

[11] Runkel M, Neeb K, Staggs M, et al. The results of raster-scan laser conditioning studies on DKDP triplers using Nd: YAG and excimer lasers［C］//Proc of SPIE. 2002, 4679:368-383.

[12] Bertussi B, Damiani D, Pommies M, et al. Laser conditioning of KDP crystals using excimer and Nd:YAG lasers［C］//Proc of SPIE. 2006:64031N.

[13] Liao Z M, Roussell R, Adams J J, et al. Defect population variability in deuterated potassium di-hydrogen phosphate crystals［J］. Optics Material Express, 2012, 2(11):1612-1623.

[14] Carr C W, Radousky H B, Demos S G. Wavelength dependence of laser-induced damage: Determining the damage initiation mechanisms［J］. Physical Review Letters, 2003, 91:127402.

[15] Stuart B C, Feit M D, Rubenchik A M, et al. laser-induced damage in dielectrics with nanosecond to subpicosecond pulses［J］. Physical Review Letters, 1995, 74:2248-2251.

[16] 赵元安,胡国行,刘晓凤，等.激光预处理技术及其应用［J］.光学精密工程, 2016, 24(12):2938-2947.(Zhao Yuanan, Hu Guohang, Liu Xiaofeng, et al. Laser conditioning technology and its applications. Optics and Precision Engineering, 2016, 24(12):2938-2947)

[17] Cross D A, Carr C W. Analysis of 1ω bulk laser damage in KDP［J］. Applied Optics, 2001, 50(22):D7-D11.

[18] Feit M D, Rubenchik A M, Guenther A H, et al. Implication of nanoabsorber initiatiors for damage probability curves, pulselength scaling, and laser conditioning［C］//Proc of SPIE. 2004, 5273:74-82.

[19] Dyan F E, Lallich S, Piombini H, et al. Scaling laws in laser-induced potassium dihydrogrn phosphate crystal damage by nanosecond pulses at 3ω［J］. Journal of the Optical Society of America B, 2008, 25(6):1087-1095.

[20] Honig J, Halpin J, Browning D, et al. Diode-pumped Nd: YAG laser with 38W average power and user-selectable, flat-in-time subnanosecond pulses［J］. Applied Optics, 2007, 46(16):3269-3275.

[21] Liao Z M, Roussell R, Adams J J, et al. Defect population variability in deuterated potassium di-hydrogen phosphate crystals［J］. Optics Material Express, 2012, 2(11):1612-1623.

[22] Trenholme J B, Feit M D, Rubenchik A M. Size-selection initiation model extended to include shape and random factor［C］//Proc of SPIE. 2005:59910X.

[23] Hu Guohang, Zhao Yuan’an, Sun Shaotao, et al. One-on-one and R-on-one tests on KDP and DKDP crystals with differene orientations［J］. Chinese Physics Letters, 2009, 26:087801.

[24] ISO 21254-1:2011(E), Lasers and laser-related equipment -Test methods for laser-induced damage threshold -part 1: Definitions and general principles［S］.

[25] ISO 21254-2:2011(E), Lasers and laser-related equipment -Test methods for laser-induced damage threshold -part 2: Threshold determination［S］.

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

[27] Krol H, Gallais L, Grezes-Besset C, et al. Investigation of nanoprecursors threshold distribution in laser-damage testing［J］. Optics Commun, 2005, 256(1):184-189.

[28] 胡国行.KDP/DKDP晶体和熔石英激光损伤及抑制技术研究［D］.上海：中国科学院上海光学精密机械研究所, 2011:48.(Hu Guohang. Laser induced damage and suppression techniques for KDP/DKDP crystal and fused silica. Shanghai: Shanghai Institute of Optics and Fine Mechanics, 2011:48)

徐子媛, 王岳亮, 赵元安, 邵建达. 不同脉冲宽度355 nm波长激光诱导DKDP晶体损伤特性[J]. 强激光与粒子束, 2019, 31(9): 091004. Xu Ziyuan, Wang Yueliang, Zhao Yuan’an, Shao Jianda. Laser damage behaviors of DKDP crystals dominated by laser pulse duration[J]. High Power Laser and Particle Beams, 2019, 31(9): 091004.

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