Two-Center Interference in the Photoionization Delays of Kr 2
Abstract
Herein we present the experimental observation of two-center interference in the ionization time delays of Kr2. Using attosecond electron-ion-coincidence spectroscopy, we simultaneously measure the photoionization delays of krypton monomer and dimer. The relative time delay is found to oscillate as a function of the electron kinetic energy, an effect that is traced back to constructive and destructive interference of the photoelectron wave packets that are emitted or scattered from the two atomic centers. Our interpretation of the experimental results is supported by solving the time-independent Schrödinger equation of a 1D double-well potential, as well as coupled-channel multiconfigurational quantum-scattering calculations of Kr2. This work opens the door to the study of a broad class of quantum-interference effects in photoionization delays and demonstrates the potential of attosecond coincidence spectroscopy for studying weakly bound systems.
- Authors:
-
[1];
[1];
[1];
[3];
[1]
- Eidgenoessische Technische Hochschule (ETH), Zurich (Switzerland)
- East China Normal Univ. (ECNU), Shanghai (China)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Eidgenoessische Technische Hochschule (ETH), Zurich (Switzerland); Tohoku Univ., Sendai (Japan)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Swiss National Science Foundation (SNSF); European Research Council (ERC); European Union (EU)
- OSTI Identifier:
- 1969057
- Grant/Contract Number:
- AC02-05CH11231; 801459
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 129; Journal Issue: 13; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; atomic & molecular processes in external fields; electronic excitation & ionization; attosecond laser spectroscopy
Citation Formats
Heck, Saijoscha, Han, Meng, Jelovina, Denis, Ji, Jia-Bao, Perry, Conaill, Gong, Xiaochun, Lucchese, Robert, Ueda, Kiyoshi, and Wörner, Hans Jakob. Two-Center Interference in the Photoionization Delays of Kr2. United States: N. p., 2022.
Web. doi:10.1103/physrevlett.129.133002.
Heck, Saijoscha, Han, Meng, Jelovina, Denis, Ji, Jia-Bao, Perry, Conaill, Gong, Xiaochun, Lucchese, Robert, Ueda, Kiyoshi, & Wörner, Hans Jakob. Two-Center Interference in the Photoionization Delays of Kr2. United States. https://doi.org/10.1103/physrevlett.129.133002
Heck, Saijoscha, Han, Meng, Jelovina, Denis, Ji, Jia-Bao, Perry, Conaill, Gong, Xiaochun, Lucchese, Robert, Ueda, Kiyoshi, and Wörner, Hans Jakob. Wed .
"Two-Center Interference in the Photoionization Delays of Kr2". United States. https://doi.org/10.1103/physrevlett.129.133002. https://www.osti.gov/servlets/purl/1969057.
@article{osti_1969057,
title = {Two-Center Interference in the Photoionization Delays of Kr2},
author = {Heck, Saijoscha and Han, Meng and Jelovina, Denis and Ji, Jia-Bao and Perry, Conaill and Gong, Xiaochun and Lucchese, Robert and Ueda, Kiyoshi and Wörner, Hans Jakob},
abstractNote = {Herein we present the experimental observation of two-center interference in the ionization time delays of Kr2. Using attosecond electron-ion-coincidence spectroscopy, we simultaneously measure the photoionization delays of krypton monomer and dimer. The relative time delay is found to oscillate as a function of the electron kinetic energy, an effect that is traced back to constructive and destructive interference of the photoelectron wave packets that are emitted or scattered from the two atomic centers. Our interpretation of the experimental results is supported by solving the time-independent Schrödinger equation of a 1D double-well potential, as well as coupled-channel multiconfigurational quantum-scattering calculations of Kr2. This work opens the door to the study of a broad class of quantum-interference effects in photoionization delays and demonstrates the potential of attosecond coincidence spectroscopy for studying weakly bound systems.},
doi = {10.1103/physrevlett.129.133002},
journal = {Physical Review Letters},
number = 13,
volume = 129,
place = {United States},
year = {Wed Sep 21 00:00:00 EDT 2022},
month = {Wed Sep 21 00:00:00 EDT 2022}
}
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