Open AccessThe COMIX polarimeter: a compact device for XUV polarization analysis
Author(s) -
Pancaldi Matteo,
Strüber Christian,
Friedrich Bertram,
Pedersoli Emanuele,
De Angelis Dario,
Nikolov Ivaylo P.,
Manfredda Michele,
Foglia Laura,
Yulin Sergiy,
Spezzani Carlo,
Sacchi Maurizio,
Eisebitt Stefan,
von Korff Schmising Clemens,
Capotondi Flavio
Publication year - 2022
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577522004027
Subject(s) - extreme ultraviolet , polarimeter , optics , synchrotron radiation , polarization (electrochemistry) , faraday effect , physics , laser , polarimetry , optoelectronics , materials science , magnetic field , scattering , chemistry , quantum mechanics
We report on the characterization of a novel extreme‐ultraviolet polarimeter based on conical mirrors to simultaneously detect all the components of the electric field vector for extreme‐ultraviolet radiation in the 45–90 eV energy range. The device has been characterized using a variable polarization source at the Elettra synchrotron, showing good performance in the ability to determine the radiation polarization. Furthermore, as a possible application of the device, Faraday spectroscopy and time‐resolved experiments have been performed at the Fe M 2,3 ‐edge on an FeGd ferrimagnetic thin film using the FERMI free‐electron laser source. The instrument is shown to be able to detect the small angular variation induced by an optical external stimulus on the polarization state of the light after interaction with magnetic thin film, making the device an appealing tool for magnetization dynamics research.