title: Single Shot Polarization Characterization of XUV FEL Pulses from Crossed Polarized Undulators.
abstract: Polarization control is a key feature of light generated by short-wavelength free-electron lasers. In this work, we report the first experimental characterization of the polarization properties of an extreme ultraviolet high gain free-electron laser operated with crossed polarized undulators. We investigate the average degree of polarization and the shot-to-shot stability and we analyze aspects such as existing possibilities for controlling and switching the polarization state of the emitted light. The results are in agreement with predictions based on Gaussian beams propagation.
authors: Elettra-Sincrotrone Trieste, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.|Università degli Studi di Trieste, Dipartimento di Fisica, Piazzale Europa 1, 34127 Trieste, Italy.
authors: E
authors: E
authors: Ferrari
authors: Elettra-Sincrotrone Trieste, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.
authors: E
authors: E
authors: Allaria
authors: European XFEL, 22761 Hamburg, Germany.
authors: J
authors: J
authors: Buck
authors: Elettra-Sincrotrone Trieste, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.|Laboratory of Quantum Optics, University of Nova Gorica, 5000 Nova Gorica, Slovenia.
authors: G
authors: G
authors: De Ninno
authors: Elettra-Sincrotrone Trieste, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.
authors: B
authors: B
authors: Diviacco
authors: Elettra-Sincrotrone Trieste, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.|Laboratory of Quantum Optics, University of Nova Gorica, 5000 Nova Gorica, Slovenia.
authors: D
authors: D
authors: Gauthier
authors: Elettra-Sincrotrone Trieste, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.|Enea, via Enrico Fermi 45, 00044 Frascati, Roma, Italy.
authors: L
authors: L
authors: Giannessi
authors: DESY, 22607 Hamburg, Germany.
authors: L
authors: L
authors: Glaser
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Z
authors: Z
authors: Huang
authors: European XFEL, 22761 Hamburg, Germany.|Stanford PULSE Institute, Menlo Park, CA, USA.
authors: M
authors: M
authors: Ilchen
authors: Laboratoire d'Optique Appliquée, ENSTA ParisTech-CNRS UMR 7639-Ecole polytechnique, Chemin de la Huniére, 91761 Palaiseau, France.
authors: G
authors: G
authors: Lambert
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: A A
authors: AA
authors: Lutman
authors: Laboratoire d'Optique Appliquée, ENSTA ParisTech-CNRS UMR 7639-Ecole polytechnique, Chemin de la Huniére, 91761 Palaiseau, France.
authors: B
authors: B
authors: Mahieu
authors: Elettra-Sincrotrone Trieste, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.
authors: G
authors: G
authors: Penco
authors: Elettra-Sincrotrone Trieste, S.S. 14-km 163.5, 34149 Basovizza, Trieste, Italy.
authors: C
authors: C
authors: Spezzani
authors: DESY, 22607 Hamburg, Germany.
authors: J
authors: J
authors: Viefhaus