We have designed and implemented a femtosecond X-ray split and delay unit based on grazing incidence Mach-Zehnder optics at the Free-Electron Laser at Hamburg (FLASH) which generates through the SASE mechanism intense, coherent soft X-ray radiation. We achieve a variable delay of ±5.1ps at sub fs-resolution. In our experiments we have explored the longitudinal coherence through optical fringe formation, autocorrelation with two photon photoe-mission, nuclear wave packet dynamics in molecular nitrogen as well as first femtosecond time resolved X-ray emission in solids to study electron dynamics.

© 2009 APS DLS

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription