Selectivity of Electronic Coherence and Attosecond Ionization Delays in Strong-Field Double Ionization
Abstract
Experiments are presented on real-time probing of coherent electron dynamics in xenon initiated by strong-field double ionization. Attosecond transient absorption measurements allow for characterization of electronic coherences as well as relative ionization timings in multiple electronic states of $$Xe^{+}$$ and Xe$$^{2+}$$. A high degree of coherence g=0.4 is observed between $$^{3}P_{2}^{0}-^{3}P_{0}^{0}$$ of $$Xe^{2+}$$, whereas for other possible pairs of states the coherences are below the detection limits of the experiments. A comparison of the experimental results with numerical simulations based on an uncorrelated electron-emission model shows that the coherences produced by strong-field double ionization are more selective than predicted. Surprisingly short ionization time delays, 0.85 fs, 0.64 fs, and 0.75 fs relative to $$Xe^{+}$$ formation, are also measured for the $$^{3}P_{2}$$, $$^{3}P_{0}$$, and $$^{3}P_{1}$$ states of Xe$$^{2+}$$, respectively. Both the unpredicted selectivity in the formation of coherence and the subfemtosecond time delays of specific states provide new insight into correlated electron dynamics in strong-field double ionization.
- Authors:
-
- Univ. of California, Berkeley, CA (United States)
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1580271
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 120; Journal Issue: 23; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS
Citation Formats
Kobayashi, Yuki, Reduzzi, Maurizio, Chang, Kristina F., Timmers, Henry, Neumark, Daniel M., and Leone, Stephen R. Selectivity of Electronic Coherence and Attosecond Ionization Delays in Strong-Field Double Ionization. United States: N. p., 2018.
Web. doi:10.1103/physrevlett.120.233201.
Kobayashi, Yuki, Reduzzi, Maurizio, Chang, Kristina F., Timmers, Henry, Neumark, Daniel M., & Leone, Stephen R. Selectivity of Electronic Coherence and Attosecond Ionization Delays in Strong-Field Double Ionization. United States. https://doi.org/10.1103/physrevlett.120.233201
Kobayashi, Yuki, Reduzzi, Maurizio, Chang, Kristina F., Timmers, Henry, Neumark, Daniel M., and Leone, Stephen R. Mon .
"Selectivity of Electronic Coherence and Attosecond Ionization Delays in Strong-Field Double Ionization". United States. https://doi.org/10.1103/physrevlett.120.233201. https://www.osti.gov/servlets/purl/1580271.
@article{osti_1580271,
title = {Selectivity of Electronic Coherence and Attosecond Ionization Delays in Strong-Field Double Ionization},
author = {Kobayashi, Yuki and Reduzzi, Maurizio and Chang, Kristina F. and Timmers, Henry and Neumark, Daniel M. and Leone, Stephen R.},
abstractNote = {Experiments are presented on real-time probing of coherent electron dynamics in xenon initiated by strong-field double ionization. Attosecond transient absorption measurements allow for characterization of electronic coherences as well as relative ionization timings in multiple electronic states of $Xe^{+}$ and Xe$^{2+}$. A high degree of coherence g=0.4 is observed between $^{3}P_{2}^{0}-^{3}P_{0}^{0}$ of $Xe^{2+}$, whereas for other possible pairs of states the coherences are below the detection limits of the experiments. A comparison of the experimental results with numerical simulations based on an uncorrelated electron-emission model shows that the coherences produced by strong-field double ionization are more selective than predicted. Surprisingly short ionization time delays, 0.85 fs, 0.64 fs, and 0.75 fs relative to $Xe^{+}$ formation, are also measured for the $^{3}P_{2}$, $^{3}P_{0}$, and $^{3}P_{1}$ states of Xe$^{2+}$, respectively. Both the unpredicted selectivity in the formation of coherence and the subfemtosecond time delays of specific states provide new insight into correlated electron dynamics in strong-field double ionization.},
doi = {10.1103/physrevlett.120.233201},
journal = {Physical Review Letters},
number = 23,
volume = 120,
place = {United States},
year = {Mon Jun 04 00:00:00 EDT 2018},
month = {Mon Jun 04 00:00:00 EDT 2018}
}
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