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Article Dans Une Revue Journal of Synchrotron Radiation Année : 2022

The COMIX polarimeter: a compact device for XUV polarization analysis

Matteo Pancaldi
Christian Strüber
Emanuele Pedersoli
Dario de Angelis
Ivaylo Nikolov
Carlo Spezzani
Flavio Capotondi

Résumé

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.
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Dates et versions

hal-03741787 , version 1 (04-11-2022)

Identifiants

Citer

Matteo Pancaldi, Christian Strüber, Bertram Friedrich, Emanuele Pedersoli, Dario de Angelis, et al.. The COMIX polarimeter: a compact device for XUV polarization analysis. Journal of Synchrotron Radiation, 2022, 29 (4), pp.969-977. ⟨10.1107/S1600577522004027⟩. ⟨hal-03741787⟩
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