Broadband xuv supercontinuum generation via controlling quantum paths by a low-frequency field
Broadband xuv supercontinuum generation via controlling quantum paths by a low-frequency field
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通过低频场控制量子路径产生宽带 xuv 超连续谱
DOI：
10.1103/physreva.77.033410
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发表时间：
2008-03
影响因子：
2.9
通讯作者：
Weiyi Hong
中科院分区：
文献类型：
--
作者：
Peixiang Lu;Weiyi Hong
提出了一种利用相位稳定的几个周期激光脉冲和低频场相结合产生宽带极紫外超连续谱谐波的方法。结果表明，这种方法可以显着调制谐波的量子路径。谐波频谱扩展到I p +8.2 U p，带宽为4 U p的谐波变为连续谐波。通过调整几个周期脉冲的载波包络相位，直接获得了接近傅里叶极限的亚50as脉冲。
We propose a method to generate broadband extreme ultraviolet supercontinuum harmonics by using the combination of a phase-stabilized few-cycle laser pulse and a low-frequency field. It is shown that this method can significantly modulate the quantum paths of the harmonics. The harmonic spectrum is extended to ${I}_{p}+8.2{U}_{p}$ and harmonics with a bandwidth of $4{U}_{p}$ become continuous. By adjusting the carrier-envelope phase of the few-cycle pulse, a close-to-Fourier-limit sub-50-as pulse is straightforwardly obtained.