Carrier-envelope phase dependent high-order harmonic generation with a high-repetition rate OPCPA-system
Carrier-envelope phase dependent high-order harmonic generation with a high-repetition rate OPCPA-system
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DOI：
10.1140/epjd/e2015-50568-y
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发表时间：
2015-03
期刊：
影响因子：
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通讯作者：
P. Rudawski;A. Harth;Chen Guo;E. Lorek;M. Miranda;C. Heyl;E. Larsen;J. Ahrens;O. Prochnow;T. Binhammer;U. Morgner;J. Mauritsson;A. L’Huillier;C. Arnold
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文献类型：
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作者：
P. Rudawski;A. Harth;Chen Guo;E. Lorek;M. Miranda;C. Heyl;E. Larsen;J. Ahrens;O. Prochnow;T. Binhammer;U. Morgner;J. Mauritsson;A. L’Huillier;C. Arnold
本文研究了利用高重复频率（200 kHz）、少周期激光器驱动的光参量啁啾脉冲放大技术产生高次谐波。该系统输出中心波长为890 nm、载波包络相位稳定的8 fs、10μJ脉冲。由于驱动激光脉冲的出色稳定性，高压氩气射流中产生的高次谐波在很大的光谱范围内表现出很强的CEP依赖性。这个范围可以分为三个光谱区域，具有不同的CEP影响。通过基于多脉冲干涉的分析模型解释了观测到的光谱干涉结构。图形摘要
AbstractWe study high-order harmonic generation with a high-repetition rate (200 kHz), few-cycle, driving laser, based on optical parametric chirped pulse amplification. The system delivers carrier-envelope phase stable, 8 fs, 10μJ pulses at a central wavelength of 890 nm. High-order harmonics, generated in a high-pressure Ar gas jet, exhibit a strong CEP-dependence over a large spectral range owing to excellent stability of the driving laser pulses. This range can be divided into three spectral regions with distinct CEP influence. The observed spectral interference structures are explained by an analytical model based upon multiple pulse interferences.Graphical abstract