Polarization Characterization of Soft X-Ray Radiation at FERMI FEL-2

Polarization Characterization of Soft X-Ray Radiation at FERMI FEL-2

The control of polarization state in soft and hard X-ray light is of crucial interest to probe structural and symmetry properties of matter. Thanks to their Apple-II type undulators, the FERMI-Free Electron Lasers are able to provide elliptical, circular or linearly polarized light within the extrem...

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Bibliographic Details
Main Authors: Eléonore Roussel, Enrico Allaria, Carlo Callegari, Marcello Coreno, Riccardo Cucini, Simone Di Mitri, Bruno Diviacco, Eugenio Ferrari, Paola Finetti, David Gauthier, Giuseppe Penco, Lorenzo Raimondi, Cristian Svetina, Marco Zangrando, Andreas Beckmann, Leif Glaser, Gregor Hartmann, Frank Scholz, Joern Seltmann, Ivan Shevchuk, Jens Viefhaus, Luca Giannessi
Format: Article
Language:English
Published: MDPI AG 2017-04-01
Series:Photonics
Subjects:
free-electron laser
extreme ultraviolet
soft X-ray
polarization control
Online Access:http://www.mdpi.com/2304-6732/4/2/29
Description
Summary:The control of polarization state in soft and hard X-ray light is of crucial interest to probe structural and symmetry properties of matter. Thanks to their Apple-II type undulators, the FERMI-Free Electron Lasers are able to provide elliptical, circular or linearly polarized light within the extreme ultraviolet and soft X-ray range. In this paper, we report the characterization of the polarization state of FERMI FEL-2 down to 5 nm. The results show a high degree of polarization of the FEL pulses, typically above 95%. The campaign of measurements was performed at the Low Density Matter beamline using an electron Time-Of-Flight based polarimeter.
ISSN:2304-6732

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