Laser-Assisted Electron Scattering and Diffraction in Ultrashort Intense Laser Fields
Laser-Assisted Electron Scattering and Diffraction in Ultrashort Intense Laser Fields
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超短强激光场中的激光辅助电子散射和衍射
DOI：
10.1007/978-3-319-00521-8_1
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Kaoru Yamanouchi
中科院分区：
文献类型：
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作者：
Reika Kanya;Yuya Morimoto;Kaoru Yamanouchi
综述了超短强激光场中激光辅助电子散射实验研究的最新进展。简要介绍了LAES过程的理论背景和20世纪70年代开始的早期LAES实验，讨论了超短强激光场中LAES实验引起的新现象和这些实验的预期应用。介绍了一种用于测量超短强激光场诱导LAES的实验装置。给出了LAES信号的能谱、角分布和激光偏振依赖性的实验结果以及相应的数值模拟结果。在我们的实验条件下获得的LAES信号中出现的光修饰效应也通过数值计算进行了检验。此外，作为LAES过程的一个应用，本文还介绍了一种新的激光辅助电子衍射技术来测定分子的瞬时几何结构。
Recent progress in experimental studies of laser-assisted electron scattering (LAES) in ultrashort intense laser fields is reviewed. After a brief survey of theoretical backgrounds of the LAES process and earlier LAES experiments started in 1970’s, new phenomena induced by LAES experiments in ultrashort intense laser fields and expected applications of these experiments are discussed. A new experimental setup designed for measurements of LAES induced by ultrashort intense laser fields is described. Experimental results of energy spectra, angular distributions, and laser polarization dependence of the LAES signals are presented with corresponding results of numerical simulations. A light-dressing effect appearing in the LAES signals to be obtained under our experimental conditions is also examined by numerical calculations. In addition, as an application of the LAES process, the determination of instantaneous geometrical structure of molecules by a novel technique of laser-assisted electron diffraction is introduced.