Experimental retrieval of target structure information from laser-induced rescattered photoelectron momentum distributions.
Experimental retrieval of target structure information from laser-induced rescattered photoelectron momentum distributions.
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DOI：
10.1103/physrevlett.100.143001
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发表时间：
2008-04
影响因子：
8.6
通讯作者：
M. Okunishi;T. Morishita;T. Morishita;G. Prümper;K. Shimada;C. Lin;Shinichi Watanabe;K. Ueda
中科院分区：
文献类型：
--
作者：
M. Okunishi;T. Morishita;T. Morishita;G. Prümper;K. Shimada;C. Lin;Shinichi Watanabe;K. Ueda
我们已经测量了二维光电子动量谱的Ne，Ar，和由800 nm，100 fs的激光脉冲产生，并成功地确定的光谱脊区域（背散射脊），这标志着返回的电子，已被背散射在其最大动能的位置。我们证明了结构信息，特别是自由电子的目标离子的微分弹性散射截面，可以准确地提取从脊上的光电子的强度分布，从而实现第一步的激光诱导自成像的目标，具有前所未有的空间和时间分辨率。
We have measured two-dimensional photoelectron momentum spectra of Ne, Ar, and Xe generated by 800-nm, 100-fs laser pulses and succeeded in identifying the spectral ridge region (back-rescattered ridges) which marks the location of the returning electrons that have been backscattered at their maximum kinetic energies. We demonstrate that the structural information, in particular the differential elastic scattering cross sections of the target ion by free electrons, can be accurately extracted from the intensity distributions of photoelectrons on the ridges, thus effecting a first step toward laser-induced self-imaging of the target, with unprecedented spatial and temporal resolutions.