Academic Journal
High gas-pressure apparatus for nonlinear X-ray propagation and reshaping via stimulated X-ray Raman scattering
| Τίτλος: | High gas-pressure apparatus for nonlinear X-ray propagation and reshaping via stimulated X-ray Raman scattering |
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| Συγγραφείς: | Magunia, Alexander, Author, Rebholz, Marc, Author, Mazza, Tommaso, Author, De Fanis, Alberto, Author, Baumann, Thomas M., Author, Usenko, Sergey, Author, Rennhack, Nils, Author, Li, Kai, Author, Simon, Marc, Author, Agåker, Marcus, Author, Rubensson, Jan-Erik, Author, Meyer, Michael, Author, Young, Linda, Author, Ott, Christian, Author, Pfeifer, Thomas, Author |
| Συνεισφορές: | Magunia, Alexander, Author, Rebholz, Marc, Author, Mazza, Tommaso, Author, De Fanis, Alberto, Author, Baumann, Thomas M., Author, Usenko, Sergey, Author, Rennhack, Nils, Author, Li, Kai, Author, Simon, Marc, Author, Agåker, Marcus, Author, Rubensson, Jan-Erik, Author, Meyer, Michael, Author, Young, Linda, Author, Ott, Christian, Author, Pfeifer, Thomas, Author |
| Πηγή: | Scientific Reports. 15(1) |
| Περιγραφή: | We describe an experimental setup for non-linear interaction and propagation of ultrashort and intense x-ray free-electron laser (XFEL) pulses in a dense gas. It allows one to provide high, but adjustable, target-gas pressures of up to 6 bar within a vacuum environment of 3 · 10- 3 mbar or better. The setup enables investigation of intense x-ray propagation in an optically thick medium with minimal absorption loss of the unfocused beam outside of the target. As an application, we demonstrate the amplification of spectrally-resolved stimulated x-ray Raman scattering (SXRS) in dense neon gas, where the most intense inner part of the beam is almost completely absorbed. As a result, in the inner part of the beam, the SXRS signal exceeds the residual XFEL pulse by a factor of around two. In principle, this reshaping effect allows for a spatial separation of the two spectral components, i.e., the driving pulse and the SXRS signal. |
| Περιγραφή αρχείου: | electronic |
| Σύνδεσμος πρόσβασης: | https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-575500 https://doi.org/10.1038/s41598-025-32245-x |
| Βάση Δεδομένων: | SwePub |
| ISSN: | 20452322 |
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| DOI: | 10.1038/s41598-025-32245-x |