| Broadband water window supercontinuum generation with a w ＋3w/2 multicycle two-colour pulse |
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| 基金项目： | Project supported by the Program for New Century Excellent Talents in University of China, the National Natural Science Foundation of China （Grant Nos. 10775062 and 10875054）, and the Fundamental Research Funds for the Central Universities of China （Grant No. lzujbky-2010-k08）. |
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| 摘 要： | ![]()
We propose a method to generate a high-efficiency broadband water window supercontinuum with a w ＋ 3w/2 multicycle two-colour pulse. Our results reveal that the 3w/2 laser pulse can simultaneously modulate the acceleration step and the ionization step, which not only broadens the bandwidth but also enhances the yield of the generated supercontinuum. An ultra-broadband supercontinuum from 290 eV to 555 eV covering the whole water window is generated. Using this method, we expect that an isolated 62-as pulse with a minor pre-pulse can be directly obtained.
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| 关 键 词： | 激光脉冲 超连续 多旋回 超宽带 水窗 未成年人 预脉冲 EV |
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