Direct autocorrelation of soft-x-ray free-electron-laser pulses by time-resolved two-photon double ionization of He
Mitzner R, Sorokin AA, Siemer B, Roling S, Rutkowski M, Zacharias H, Neeb M, Noll T, Siewert F, Eberhardt W, Richter M, Juranic P, Tiedtke K, Feldhaus J
Forschungsartikel (Zeitschrift)Zusammenfassung
The pulse duration of soft x-ray free-electron laser (FEL) radiation is directly measured by time-resolved observation of doubly charged helium ions at 51.8 eV. A wave front splitting autocorrelator produces two correlated FEL pulses with a resolution of better than a femtosecond. In the interesting intensity range from 10(13) to 10(16) W/cm(2) direct and sequential double ionization contribute to the ion yield which has significant influence on the correlation width, being a general feature at high photon energies. Here, a duration of tau(L) = (29 +/- 5) fs is derived for the soft x-ray pulses at FLASH.
Details zur Publikation
Autor*innen der Universität Münster
| Roling, Sebastian | Physikalisches Institut (PI) Arbeitsgruppe Dynamik an Grenzflächen (Prof. Zacharias) |
| Siemer, Björn | Physikalisches Institut (PI) Arbeitsgruppe Dynamik an Grenzflächen (Prof. Zacharias) |
| Zacharias, Helmut | Physikalisches Institut (PI) Center for Nonlinear Science (CeNoS) Arbeitsgruppe Dynamik an Grenzflächen (Prof. Zacharias) |
Promotionen, aus denen die Publikation resultiert
| Zeitaufgelöste Messungen mit ultrakurzen XUV-Pulsen des Freie-Elektronen-Lasers "FLASH" Promovend*in: Siemer, Björn | Betreuer*innen: Zacharias, Helmut Zeitraum: 01.06.2006 - 11.07.2012 Promotionsverfahren erfolgt(e) an: Promotionsverfahren an der Universität Münster |