Active stabilization for ultralong acquisitions in an attosecond pump-probe beamline
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866912550915932160 |
|---|---|
| author | Csizmadia, Tamás Oldal, Lénárd Gulyás Gilicze, Barnabás Kiss, Dániel Sándor Bartyik, Tamás Varjú, Katalin Kahaly, Subhendu Major, Balázs |
| author_facet | Csizmadia, Tamás Oldal, Lénárd Gulyás Gilicze, Barnabás Kiss, Dániel Sándor Bartyik, Tamás Varjú, Katalin Kahaly, Subhendu Major, Balázs |
| contents | Attosecond time-resolution experiments using noncollinear interferometers require precise and active control of the optical delay to prevent instabilities - including both slow drifts and rapid vibrations - that can obscure the time evolution of the physical system under investigation. In this work, we present the design and results of stability measurements for a double interferometer setup for extreme ultraviolet-infrared pump-probe spectroscopy. The attosecond pump-probe setup is driven by a high-average-power, high-repetition-rate laser system and offers sub-optical-cycle (+/-81 as) stability with a fast feedback rate over extended periods (up to several days). Due to the noncollinear arrangement, the setup enables independent control of both amplitude and phase in the two arms even across significantly different spectral regions. As a proof of concept, we demonstrate attosecond beating in angle-resolved photoemission during two-photon, two-color photoionization, highlighting the broad potential of the system for kinematically and dynamically complete studies of atomic-scale light-matter interactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_08448 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Active stabilization for ultralong acquisitions in an attosecond pump-probe beamline Csizmadia, Tamás Oldal, Lénárd Gulyás Gilicze, Barnabás Kiss, Dániel Sándor Bartyik, Tamás Varjú, Katalin Kahaly, Subhendu Major, Balázs Optics Atomic Physics Attosecond time-resolution experiments using noncollinear interferometers require precise and active control of the optical delay to prevent instabilities - including both slow drifts and rapid vibrations - that can obscure the time evolution of the physical system under investigation. In this work, we present the design and results of stability measurements for a double interferometer setup for extreme ultraviolet-infrared pump-probe spectroscopy. The attosecond pump-probe setup is driven by a high-average-power, high-repetition-rate laser system and offers sub-optical-cycle (+/-81 as) stability with a fast feedback rate over extended periods (up to several days). Due to the noncollinear arrangement, the setup enables independent control of both amplitude and phase in the two arms even across significantly different spectral regions. As a proof of concept, we demonstrate attosecond beating in angle-resolved photoemission during two-photon, two-color photoionization, highlighting the broad potential of the system for kinematically and dynamically complete studies of atomic-scale light-matter interactions. |
| title | Active stabilization for ultralong acquisitions in an attosecond pump-probe beamline |
| topic | Optics Atomic Physics |
| url | https://arxiv.org/abs/2504.08448 |