Macroscopic control of high-order harmonics quantum-path components for the generation of attosecond pulses
Macroscopic control of high-order harmonics quantum-path components for the generation of attosecond pulses
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DOI：
10.1103/physreva.74.043804
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发表时间：
2006-10-01
影响因子：
2.9
通讯作者：
Carre, B.
中科院分区：
文献类型：
--
作者：
Merdji, H.;Kovacev, M.;Carre, B.
我们目前的测量不同的量子路径的贡献的高次谐波发射。通过空间和光谱滤波，我们证明了空间和光谱分布之间的强相关性，这使得我们能够量化每个量子路径的贡献。作为生成参数的函数，已经做了系统的分析，以确定有效生成和选择单个量子路径的条件。我们表明，结合相位匹配和空间滤波可以最大化和选择短的量子路径。量子路径贡献，产生“干净”和强烈的阿秒脉冲的条件。
We present measurements of the different quantum path contributions to the high-order harmonic emission. Through spatial and spectral filtering, we evidence the strong correlation between the spatial and spectral distributions, which allows us to quantify the contribution of each quantum path. A systematic analysis as a function of the generating parameters has been done to identify the conditions for efficient generation and selection of a single quantum path. We show that combining phase matching and spatial filtering allows maximizing and selecting the short quantum path contribution, condition for the generation of "clean" and intense attosecond pulses.