Unraveling nonadiabatic ionization and Coulomb potential effect in strong-field photoelectron holography

Strong field photoelectron holography has been proposed as a means for interrogating the spatial and temporal information of electrons and ions in a dynamic system. After ionization, part of the electron wave packet may directly go to the detector (the reference wave), while another part may be driv...

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Veröffentlicht in:Scientific reports 2016-06, Vol.6 (1), p.28392-28392, Article 28392
Hauptverfasser: Song, Xiaohong, Lin, Cheng, Sheng, Zhihao, Liu, Peng, Chen, Zhangjin, Yang, Weifeng, Hu, Shilin, Lin, C. D., Chen, Jing
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container_title Scientific reports
container_volume 6
creator Song, Xiaohong
Lin, Cheng
Sheng, Zhihao
Liu, Peng
Chen, Zhangjin
Yang, Weifeng
Hu, Shilin
Lin, C. D.
Chen, Jing
description Strong field photoelectron holography has been proposed as a means for interrogating the spatial and temporal information of electrons and ions in a dynamic system. After ionization, part of the electron wave packet may directly go to the detector (the reference wave), while another part may be driven back and scatters off the ion(the signal wave). The interference hologram of the two waves may be used to extract target information embedded in the collision process. Unlike conventional optical holography, however, propagation of the electron wave packet is affected by the Coulomb potential as well as by the laser field. In addition, electrons are emitted over the whole laser pulse duration, thus multiple interferences may occur. In this work, we used a generalized quantum-trajectory Monte Carlo method to investigate the effect of Coulomb potential and the nonadiabatic subcycle ionization on the photoelectron hologram. We showed that photoelectron hologram can be well described only when the effect of nonadiabatic ionization is accounted for and Coulomb potential can be neglected only in the tunnel ionization regime. Our results help paving the way for establishing photoelectron holography for probing spatial and dynamic properties of atoms and molecules.
doi_str_mv 10.1038/srep28392
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In addition, electrons are emitted over the whole laser pulse duration, thus multiple interferences may occur. In this work, we used a generalized quantum-trajectory Monte Carlo method to investigate the effect of Coulomb potential and the nonadiabatic subcycle ionization on the photoelectron hologram. We showed that photoelectron hologram can be well described only when the effect of nonadiabatic ionization is accounted for and Coulomb potential can be neglected only in the tunnel ionization regime. 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D.</creatorcontrib><creatorcontrib>Chen, Jing</creatorcontrib><creatorcontrib>Shantou Univ., Shantou, Guangdong (China, Peoples Republic of)</creatorcontrib><title>Unraveling nonadiabatic ionization and Coulomb potential effect in strong-field photoelectron holography</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>Strong field photoelectron holography has been proposed as a means for interrogating the spatial and temporal information of electrons and ions in a dynamic system. After ionization, part of the electron wave packet may directly go to the detector (the reference wave), while another part may be driven back and scatters off the ion(the signal wave). The interference hologram of the two waves may be used to extract target information embedded in the collision process. 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D.</au><au>Chen, Jing</au><aucorp>Shantou Univ., Shantou, Guangdong (China, Peoples Republic of)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Unraveling nonadiabatic ionization and Coulomb potential effect in strong-field photoelectron holography</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2016-06-22</date><risdate>2016</risdate><volume>6</volume><issue>1</issue><spage>28392</spage><epage>28392</epage><pages>28392-28392</pages><artnum>28392</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>Strong field photoelectron holography has been proposed as a means for interrogating the spatial and temporal information of electrons and ions in a dynamic system. After ionization, part of the electron wave packet may directly go to the detector (the reference wave), while another part may be driven back and scatters off the ion(the signal wave). The interference hologram of the two waves may be used to extract target information embedded in the collision process. Unlike conventional optical holography, however, propagation of the electron wave packet is affected by the Coulomb potential as well as by the laser field. In addition, electrons are emitted over the whole laser pulse duration, thus multiple interferences may occur. In this work, we used a generalized quantum-trajectory Monte Carlo method to investigate the effect of Coulomb potential and the nonadiabatic subcycle ionization on the photoelectron hologram. We showed that photoelectron hologram can be well described only when the effect of nonadiabatic ionization is accounted for and Coulomb potential can be neglected only in the tunnel ionization regime. Our results help paving the way for establishing photoelectron holography for probing spatial and dynamic properties of atoms and molecules.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>27329071</pmid><doi>10.1038/srep28392</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record>
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subjects 639/624/400
639/766/36
above-threshold-ionization
Approximation
ATOMIC AND MOLECULAR PHYSICS
atoms
Energy
Experiments
Holography
Humanities and Social Sciences
induced electron-diffraction
Ionization
laser
Lasers
Monte Carlo simulation
multidisciplinary
phase
photoionization
Science
Simulation
title Unraveling nonadiabatic ionization and Coulomb potential effect in strong-field photoelectron holography
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