Signatures of under-the-barrier dynamics in a tunneling electron wavepacket
Abstract The time delay in strong field tunneling ionization presents a captivating challenge in the field of attoscience. It is linked to the phase of the photoelectron wavepacket, a relationship that modern attosecond photoelectron interferometry can effectively probe. However, the connection betw...
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| Format: | Article |
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Nature Portfolio
2024-11-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-024-01868-3 |
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| _version_ | 1846147764504756224 |
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| author | Michael Klaiber Karen Z. Hatsagortsyan Christoph H. Keitel |
| author_facet | Michael Klaiber Karen Z. Hatsagortsyan Christoph H. Keitel |
| author_sort | Michael Klaiber |
| collection | DOAJ |
| description | Abstract The time delay in strong field tunneling ionization presents a captivating challenge in the field of attoscience. It is linked to the phase of the photoelectron wavepacket, a relationship that modern attosecond photoelectron interferometry can effectively probe. However, the connection between sub-barrier dynamics and the phase formation remains unclear. In this study, we investigate the role of under-the-barrier recollisions for shaping the phase of the photoelectron wavepacket. We establish a general analytical relationship between the phase of the tunneled electron wavepacket and the tunneling rate. Our results demonstrate that the Coulomb field effect of the atomic potential enhances both the amplitude of the recolliding path and the phase shift of the wavepacket, effectively countering the lateral spreading of the tunneling wavepacket during sub-barrier propagation. The insights gained from this research will aid in the development of free electron wavepackets with tailored properties through strong field ionization. |
| format | Article |
| id | doaj-art-a65ea5c3d71e4bd7b1d41eb54b1eddc7 |
| institution | Kabale University |
| issn | 2399-3650 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj-art-a65ea5c3d71e4bd7b1d41eb54b1eddc72024-12-01T12:29:29ZengNature PortfolioCommunications Physics2399-36502024-11-01711910.1038/s42005-024-01868-3Signatures of under-the-barrier dynamics in a tunneling electron wavepacketMichael Klaiber0Karen Z. Hatsagortsyan1Christoph H. Keitel2Max-Planck-Institut für KernphysikMax-Planck-Institut für KernphysikMax-Planck-Institut für KernphysikAbstract The time delay in strong field tunneling ionization presents a captivating challenge in the field of attoscience. It is linked to the phase of the photoelectron wavepacket, a relationship that modern attosecond photoelectron interferometry can effectively probe. However, the connection between sub-barrier dynamics and the phase formation remains unclear. In this study, we investigate the role of under-the-barrier recollisions for shaping the phase of the photoelectron wavepacket. We establish a general analytical relationship between the phase of the tunneled electron wavepacket and the tunneling rate. Our results demonstrate that the Coulomb field effect of the atomic potential enhances both the amplitude of the recolliding path and the phase shift of the wavepacket, effectively countering the lateral spreading of the tunneling wavepacket during sub-barrier propagation. The insights gained from this research will aid in the development of free electron wavepackets with tailored properties through strong field ionization.https://doi.org/10.1038/s42005-024-01868-3 |
| spellingShingle | Michael Klaiber Karen Z. Hatsagortsyan Christoph H. Keitel Signatures of under-the-barrier dynamics in a tunneling electron wavepacket Communications Physics |
| title | Signatures of under-the-barrier dynamics in a tunneling electron wavepacket |
| title_full | Signatures of under-the-barrier dynamics in a tunneling electron wavepacket |
| title_fullStr | Signatures of under-the-barrier dynamics in a tunneling electron wavepacket |
| title_full_unstemmed | Signatures of under-the-barrier dynamics in a tunneling electron wavepacket |
| title_short | Signatures of under-the-barrier dynamics in a tunneling electron wavepacket |
| title_sort | signatures of under the barrier dynamics in a tunneling electron wavepacket |
| url | https://doi.org/10.1038/s42005-024-01868-3 |
| work_keys_str_mv | AT michaelklaiber signaturesofunderthebarrierdynamicsinatunnelingelectronwavepacket AT karenzhatsagortsyan signaturesofunderthebarrierdynamicsinatunnelingelectronwavepacket AT christophhkeitel signaturesofunderthebarrierdynamicsinatunnelingelectronwavepacket |