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Improvement of the ionization factor in the quantitative rescattering theory for simulating macroscopic high-order harmonic generation
Abro, Nazia1; Wang, Kan1; Zhu, Xinhao1; Li, Baochang1; Jin, Cheng1,2
作者部门瞬态光学技术国家重点实验室
2018-08-14
发表期刊PHYSICAL REVIEW A
ISSN2469-9926
卷号98期号:2
产权排序2
摘要

We propose to correct the ionization factor in the quantitative rescattering (QRS) theory for a higher precision calculation of macroscopic high harmonic generation (HHG) in a gaseous medium. Compared to the first-order strong-field approximation (SFA-1) and the Ammosov-Delone-Krainov (ADK) ionization models, the Perelomov-Popov-Terent'ev (PPT) model achieves the best agreement with the macroscopic HHG spectra of Ar based on the solution of the time-dependent Schrodinger equation (TDSE). The investigation of the ionization probability dependence on laser intensity indicates that the PPT model is consistent with the TDSE, both in the tunneling and multiphoton ionization regimes, and the SFA-1 or the ADK mostly works in the tunneling regime. This explains the difference in the total macroscopic harmonic spectra, mainly due to off-axis harmonic emissions generated by small laser intensities. The examples for Ne and Xe by using three ionization models in the QRS theory also show the significance of ionization correction by the PPT model to precisely simulate the macroscopic HHG spectra. This study will help further increase the accuracy of simulating measured HHG spectra quantitatively under a variety of macroscopic conditions.

收录类别SCI ; EI
语种英语
WOS记录号WOS:000441668600007
出版者AMER PHYSICAL SOC
EI入藏号20183405709596
引用统计
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/30573
专题瞬态光学技术国家重点实验室
通讯作者Jin, Cheng
作者单位1.Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Jiangsu, Peoples R China
2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Abro, Nazia,Wang, Kan,Zhu, Xinhao,et al. Improvement of the ionization factor in the quantitative rescattering theory for simulating macroscopic high-order harmonic generation[J]. PHYSICAL REVIEW A,2018,98(2).
APA Abro, Nazia,Wang, Kan,Zhu, Xinhao,Li, Baochang,&Jin, Cheng.(2018).Improvement of the ionization factor in the quantitative rescattering theory for simulating macroscopic high-order harmonic generation.PHYSICAL REVIEW A,98(2).
MLA Abro, Nazia,et al."Improvement of the ionization factor in the quantitative rescattering theory for simulating macroscopic high-order harmonic generation".PHYSICAL REVIEW A 98.2(2018).
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