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Title: Pulse-duration dependence of the double-to-single ionization ratio of Ne by intense 780-nm and 800-nm laser fields: Comparison of simulations with experiments

Abstract

Accurate ab initio calculations of the ratio of double-to-single ionization of Ne atoms in strong laser fields are difficult due to the many-electron nature of the target. Here, with accurate total cross sections carefully evaluated by using the state-of-the-art many-electron R-matrix theory for both electron-impact ionization and electron-impact excitation of Ne+, we simulate the total double-ionization yields of Ne2+ in strong laser fields at 780 and 800 nm for pulse durations in the range from 7.5 to 200 fs based on the improved quantitative rescattering model. The corresponding single-ionization yields of Ne+ are calculated within the nonadiabatic tunneling model of Perelomov, Popov, and Terent'ev. The ratio of double-to-single ionization of Ne is then obtained from the calculated double- and single-ionization yields. By normalizing the ratio to the one calculated from solving the time-dependent Schrödinger equation for a short few-cycle pulse, we make quantitative comparisons of our results with experimental data to show that our model predicts the experimental findings very well. Lastly, we analyze the pulse-duration dependence of the double-to-single ionization ratio.

Authors:
 [1];  [1];  [1];  [2];  [2];  [3];  [4]
+ Show Author Affiliations
  1. Shantou University (China)
  2. Drake University, Des Moines, IO (United States)
  3. The University of Electro-Communications, Tokyo (Japan)
  4. Kansas State Univ., Manhattan, KS (United States)
Publication Date:
Research Org.:
Kansas State Univ., Manhattan, KS (United States)
Sponsoring Org.:
National Science Foundation (NSF); National Natural Science Foundation of China (NSFC); JJapan Society for the Promotion of Science (JSPS); Scientific Research Foundation for the Returned Overseas Chinese Scholars; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division; Japan Society for the Promotion of Science KAKENHI
OSTI Identifier:
1610048
Alternate Identifier(s):
OSTI ID: 1505841
Grant/Contract Number:  
FG02-86ER13491; PHY-1430245; PHY-1520970; PHY-1803844; 11274219; 16H04029; 16H04103; 17K05597
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 99; Journal Issue: 4; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; optics; physics; atomic & molecular processes in external fields; multiphoton or tunneling ionization & excitation; single- and few-photon ionization & excitation

Citation Formats

Chen, Zhangjin, Zhang, Lina, Wang, Yali, Zatsarinny, Oleg, Bartschat, Klaus, Morishita, Toru, and Lin, C. D. Pulse-duration dependence of the double-to-single ionization ratio of Ne by intense 780-nm and 800-nm laser fields: Comparison of simulations with experiments. United States: N. p., 2019. Web. doi:10.1103/physreva.99.043408.
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Chen, Zhangjin, Zhang, Lina, Wang, Yali, Zatsarinny, Oleg, Bartschat, Klaus, Morishita, Toru, & Lin, C. D. Pulse-duration dependence of the double-to-single ionization ratio of Ne by intense 780-nm and 800-nm laser fields: Comparison of simulations with experiments. United States. https://doi.org/10.1103/physreva.99.043408
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Chen, Zhangjin, Zhang, Lina, Wang, Yali, Zatsarinny, Oleg, Bartschat, Klaus, Morishita, Toru, and Lin, C. D. Mon . "Pulse-duration dependence of the double-to-single ionization ratio of Ne by intense 780-nm and 800-nm laser fields: Comparison of simulations with experiments". United States. https://doi.org/10.1103/physreva.99.043408. https://www.osti.gov/servlets/purl/1610048.
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@article{osti_1610048,
title = {Pulse-duration dependence of the double-to-single ionization ratio of Ne by intense 780-nm and 800-nm laser fields: Comparison of simulations with experiments},
author = {Chen, Zhangjin and Zhang, Lina and Wang, Yali and Zatsarinny, Oleg and Bartschat, Klaus and Morishita, Toru and Lin, C. D.},
abstractNote = {Accurate ab initio calculations of the ratio of double-to-single ionization of Ne atoms in strong laser fields are difficult due to the many-electron nature of the target. Here, with accurate total cross sections carefully evaluated by using the state-of-the-art many-electron R-matrix theory for both electron-impact ionization and electron-impact excitation of Ne+, we simulate the total double-ionization yields of Ne2+ in strong laser fields at 780 and 800 nm for pulse durations in the range from 7.5 to 200 fs based on the improved quantitative rescattering model. The corresponding single-ionization yields of Ne+ are calculated within the nonadiabatic tunneling model of Perelomov, Popov, and Terent'ev. The ratio of double-to-single ionization of Ne is then obtained from the calculated double- and single-ionization yields. By normalizing the ratio to the one calculated from solving the time-dependent Schrödinger equation for a short few-cycle pulse, we make quantitative comparisons of our results with experimental data to show that our model predicts the experimental findings very well. Lastly, we analyze the pulse-duration dependence of the double-to-single ionization ratio.},
doi = {10.1103/physreva.99.043408},
journal = {Physical Review A},
number = 4,
volume = 99,
place = {United States},
year = {Mon Apr 08 00:00:00 EDT 2019},
month = {Mon Apr 08 00:00:00 EDT 2019}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/physreva.99.043408
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Cited by: 11 works
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Figures / Tables:

FIG. 1 FIG. 1: :Total cross sections for electron impact ionization and excitation of Ne+ from the ground state. Excitation of the configurations (a) 2s2p6, 2s22p43s, 2s22p43p, and 2s22p43d; (b) 2s22p44s, 2s22p44p, 2s22p44d, and 2s22p44f ; (c) 2s22p45s, 2s22p45p, 2s22p45d, and 2s22p45f . Panel (d) shows the summed total cross sections formore » ionization and excitation of all configurations in (a), (b), and (c).« less
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    Wavelength-dependent nonsequential double ionization of magnesium by intense femtosecond laser pulses
    journal, September 2019

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