High temporal contrast 1053 nm laser source based on optical parametric amplification and second-harmonic generation

IF 5.2 1区 物理与天体物理 Q1 OPTICS
L. Shen, Yanyan Li, Wenkai Li, Jiajun Song, Junyu Qian, Jianyu Sun, Renyu Feng, Yujie Peng, Y. Leng
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引用次数: 0

Abstract

Abstract Temporal contrast directly affects the interaction between ultraintense and ultrashort pulse lasers with matter. Seed laser sources with broad bandwidth and high temporal contrast are significant for overall temporal contrast enhancement. The technique of cascaded nonlinear processes with optical parametric amplification and second-harmonic generation is demonstrated for high temporal contrast seed source generation. Within 40 ps before the main pulse, the temporal contrast reaches over 1011. The pulse energy and duration of the high-contrast pulse are 112 μJ and 70 fs, respectively. Considering its high beam quality and stability, this laser source can serve as a high-quality seed for Nd:glass-based ultraintense and ultrashort pulse laser facilities.
基于光参量放大和二次谐波产生的高时间对比度1053 nm激光源
时间反差直接影响超强和超短脉冲激光与物质的相互作用。具有宽带宽和高时间对比度的种子激光源对整体时间对比度增强具有重要意义。利用非线性过程级联的光学参量放大和二次谐波产生技术,实现了高时间对比度种子源的产生。在主脉冲前40ps内,时间对比度达到1011以上。高对比度脉冲能量为112 μJ,持续时间为70 fs。该激光源具有较高的光束质量和稳定性,可以作为钕玻璃基超强和超短脉冲激光设备的高质量种子。
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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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