Polarization measurement of free electron laser pulses in the VUV generated by 
the variable polarization source FERMI.

Finetti, P.; Allaria, E.; Diviacco, B.; Callegari, C.; Mahieu, B.; Viefhaus, J.; Zangrando, M.; De Ninno, G.; Lambert, G.; Ferrari, E.; Buck, J.; Ilchen, M.; Vodungbo, B.; Mahne, N.; Svetina, C.; Spezzani, C.; Di Mitri, S.; Penco, G.; Trovò, M.; Fawley, W. M.; Rebernik, P.; Gauthier, D.; Grazioli, C.; Coreno, M.; Ressel, B.; Kivimäki, A.; Mazza, T.; Glaser, L.; Scholz, F.; Seltmann, J.; Gessler, P.; Grünert, J.; De Fanis, A.; Meyer, M.; Knie, A.; Moeller, S. P.; Raimondi, L.; Capotondi, F.; Pedersoli, E.; Plekan, O.; Danailov, M.; Demidovich, A.; Nikolov, I.; Abrami, A.; Gautier, J.; Lüning, J.; Zeitoun, P.; Giannessia, L.

doi:10.1117/12.2062717

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Polarization measurement of free electron laser pulses in the VUV generated by the variable polarization source FERMI.

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Glaser, L.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society;

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Zitation

Finetti, P., Allaria, E., Diviacco, B., Callegari, C., Mahieu, B., Viefhaus, J., et al. (2014). Polarization measurement of free electron laser pulses in the VUV generated by the variable polarization source FERMI. Proceedings of SPIE, 9210: 92100K.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002B-BB50-3

Zusammenfassung

FERMI, based at Elettra (Trieste, Italy) is the first free electron laser (FEL) facility operated for user experiments in seeded mode. Another unique property of FERMI, among other FEL sources, is to allow control of the polarization state of the radiation. Polarization dependence in the study of the interaction of coherent, high field, short-pulse ionizing radiation with matter, is a new frontier with potential in a wide range of research areas. The first measurement of the polarization-state of VUV light from a single-pass FEL was performed at FERMI FEL-1 operated in the 52 nm-26 nm range. Three different experimental techniques were used. The experiments were carried out at the end-station of two different beamlines to assess the impact of transport optics and provide polarization data for the end user. In this paper we summarize the results obtained from different setups. The results are consistent with each other and allow a general discussion about the viability of permanent diagnostics aimed at monitoring the polarization of FEL pulses.