Time-resolved 3D imaging of ultrafast spin–orbit wave packet dynamics
We combine bichromatic polarization pulse shaping with photoelectron imaging tomography for time-resolved spatial imaging of ultrafast spin–orbit wave packet (SOWP) dynamics in atoms. Polarization-shaped two-color pump-probe sequences are generated by spectral amplitude and phase modulation of a fem...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2019-01-01
|
| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aafb87 |
| _version_ | 1797750192731062272 |
|---|---|
| author | Tim Bayer Daniela Gräfing Stefanie Kerbstadt Dominik Pengel Kevin Eickhoff Lars Englert Matthias Wollenhaupt |
| author_facet | Tim Bayer Daniela Gräfing Stefanie Kerbstadt Dominik Pengel Kevin Eickhoff Lars Englert Matthias Wollenhaupt |
| author_sort | Tim Bayer |
| collection | DOAJ |
| description | We combine bichromatic polarization pulse shaping with photoelectron imaging tomography for time-resolved spatial imaging of ultrafast spin–orbit wave packet (SOWP) dynamics in atoms. Polarization-shaped two-color pump-probe sequences are generated by spectral amplitude and phase modulation of a femtosecond input pulse and used to excite SOWPs in the potassium $4p$ fine-structure doublet. By selecting different spectral bands for pump and probe pulse, we achieve interference-free detection of the spatiotemporal SOWP dynamics. Using tomographic techniques, we reconstruct the three-dimensional photoelectron momentum distribution (3D-ED) created by the probe pulse. Time-resolved measurement of the 3D-ED reveals the orbital realignment dynamics induced by spin–orbit interaction in the neutral atom. |
| first_indexed | 2024-03-12T16:29:10Z |
| format | Article |
| id | doaj.art-170558061f6445939bc79512c51a7898 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:29:10Z |
| publishDate | 2019-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-170558061f6445939bc79512c51a78982023-08-08T15:33:47ZengIOP PublishingNew Journal of Physics1367-26302019-01-0121303300110.1088/1367-2630/aafb87Time-resolved 3D imaging of ultrafast spin–orbit wave packet dynamicsTim Bayer0Daniela Gräfing1Stefanie Kerbstadt2Dominik Pengel3Kevin Eickhoff4Lars Englert5Matthias Wollenhaupt6Carl von Ossietzky Universität Oldenburg , Institut für Physik, Carl-von-Ossietzky-Straße 9-11, D-26129 Oldenburg, GermanyCarl von Ossietzky Universität Oldenburg , Institut für Physik, Carl-von-Ossietzky-Straße 9-11, D-26129 Oldenburg, GermanyCarl von Ossietzky Universität Oldenburg , Institut für Physik, Carl-von-Ossietzky-Straße 9-11, D-26129 Oldenburg, GermanyCarl von Ossietzky Universität Oldenburg , Institut für Physik, Carl-von-Ossietzky-Straße 9-11, D-26129 Oldenburg, GermanyCarl von Ossietzky Universität Oldenburg , Institut für Physik, Carl-von-Ossietzky-Straße 9-11, D-26129 Oldenburg, GermanyCarl von Ossietzky Universität Oldenburg , Institut für Physik, Carl-von-Ossietzky-Straße 9-11, D-26129 Oldenburg, GermanyCarl von Ossietzky Universität Oldenburg , Institut für Physik, Carl-von-Ossietzky-Straße 9-11, D-26129 Oldenburg, GermanyWe combine bichromatic polarization pulse shaping with photoelectron imaging tomography for time-resolved spatial imaging of ultrafast spin–orbit wave packet (SOWP) dynamics in atoms. Polarization-shaped two-color pump-probe sequences are generated by spectral amplitude and phase modulation of a femtosecond input pulse and used to excite SOWPs in the potassium $4p$ fine-structure doublet. By selecting different spectral bands for pump and probe pulse, we achieve interference-free detection of the spatiotemporal SOWP dynamics. Using tomographic techniques, we reconstruct the three-dimensional photoelectron momentum distribution (3D-ED) created by the probe pulse. Time-resolved measurement of the 3D-ED reveals the orbital realignment dynamics induced by spin–orbit interaction in the neutral atom.https://doi.org/10.1088/1367-2630/aafb87bichromatic polarization pulse shapingphotoelectron imaging tomographyultrafast spin–orbit wave packet dynamicsfemtosecond two-color pump-probe studymultiphoton ionization |
| spellingShingle | Tim Bayer Daniela Gräfing Stefanie Kerbstadt Dominik Pengel Kevin Eickhoff Lars Englert Matthias Wollenhaupt Time-resolved 3D imaging of ultrafast spin–orbit wave packet dynamics New Journal of Physics bichromatic polarization pulse shaping photoelectron imaging tomography ultrafast spin–orbit wave packet dynamics femtosecond two-color pump-probe study multiphoton ionization |
| title | Time-resolved 3D imaging of ultrafast spin–orbit wave packet dynamics |
| title_full | Time-resolved 3D imaging of ultrafast spin–orbit wave packet dynamics |
| title_fullStr | Time-resolved 3D imaging of ultrafast spin–orbit wave packet dynamics |
| title_full_unstemmed | Time-resolved 3D imaging of ultrafast spin–orbit wave packet dynamics |
| title_short | Time-resolved 3D imaging of ultrafast spin–orbit wave packet dynamics |
| title_sort | time resolved 3d imaging of ultrafast spin orbit wave packet dynamics |
| topic | bichromatic polarization pulse shaping photoelectron imaging tomography ultrafast spin–orbit wave packet dynamics femtosecond two-color pump-probe study multiphoton ionization |
| url | https://doi.org/10.1088/1367-2630/aafb87 |
| work_keys_str_mv | AT timbayer timeresolved3dimagingofultrafastspinorbitwavepacketdynamics AT danielagrafing timeresolved3dimagingofultrafastspinorbitwavepacketdynamics AT stefaniekerbstadt timeresolved3dimagingofultrafastspinorbitwavepacketdynamics AT dominikpengel timeresolved3dimagingofultrafastspinorbitwavepacketdynamics AT kevineickhoff timeresolved3dimagingofultrafastspinorbitwavepacketdynamics AT larsenglert timeresolved3dimagingofultrafastspinorbitwavepacketdynamics AT matthiaswollenhaupt timeresolved3dimagingofultrafastspinorbitwavepacketdynamics |