High-energy, hundred-picosecond pulsed 266 nm mid-ultraviolet generation by a barium borate crystal

IF 5.2 1区 物理与天体物理 Q1 OPTICS
Ning Wen, Nan Wang, N. Zong, Xuechun Lin, Hong-wei Gao, Yong Bo, Q. Peng, D. Cui, Zu-Yan Xu
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引用次数: 0

Abstract

Abstract We present a high-energy, hundred-picosecond (ps) pulsed mid-ultraviolet solid-state laser at 266 nm by a direct second harmonic generation (SHG) in a barium borate (BaB2O4, BBO) nonlinear crystal. The green pump source is a 710 mJ, 330 ps pulsed laser at a wavelength of 532 nm with a repetition rate of 1 Hz. Under a green pump energy of 710 mJ, a maximum output energy of 253.3 mJ at 266 nm is achieved with 250 ps pulse duration resulting in a peak power of more than 1 GW, corresponding to an SHG conversion efficiency of 35.7% from 532 to 266 nm. The experimental data were well consistent with the theoretical prediction. To the best of our knowledge, this laser exhibits both the highest output energy and highest peak power ever achieved in a hundred-ps/ps regime at 266 nm for BBO-SHG.
由硼酸钡晶体产生的高能,百皮秒脉冲266纳米中紫外线
摘要在硼酸钡(BaB2O4, BBO)非线性晶体中,利用直接二次谐波产生(SHG),制备了一种高能、百皮秒(ps)脉冲266 nm中紫外固体激光器。绿色泵浦源是710mj、330ps的脉冲激光,波长532nm,重复频率1hz。在710 mJ的绿色泵浦能量下,在266 nm处的最大输出能量为253.3 mJ,脉冲持续时间为250 ps,峰值功率超过1 GW,对应于从532到266 nm的SHG转换效率为35.7%。实验数据与理论预测吻合较好。据我们所知,该激光器在266 nm的BBO-SHG中显示出最高的输出能量和最高的峰值功率。
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来源期刊
High Power Laser Science and Engineering
High Power Laser Science and Engineering Physics and Astronomy-Nuclear and High Energy Physics
CiteScore
7.10
自引率
4.20%
发文量
401
审稿时长
21 weeks
期刊介绍: High Power Laser Science and Engineering (HPLaser) is an international, peer-reviewed open access journal which focuses on all aspects of high power laser science and engineering. HPLaser publishes research that seeks to uncover the underlying science and engineering in the fields of high energy density physics, high power lasers, advanced laser technology and applications and laser components. Topics covered include laser-plasma interaction, ultra-intense ultra-short pulse laser interaction with matter, attosecond physics, laser design, modelling and optimization, laser amplifiers, nonlinear optics, laser engineering, optical materials, optical devices, fiber lasers, diode-pumped solid state lasers and excimer lasers.
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