%0 Conference Paper
%A Demazeux, Quentin
%A Szwaj, Christophe
%A Roussel, Eléonore
%A Steffen, Bernd
%A Czwalinna, Marie-Kristin
%A Bielawski, Serge
%T Single-Shot electro-optic detection of broadband THz at EuXFEL and FLASH using diversity scheme with advanced reconstruction algorithms
%I IEEE
%M PUBDB-2026-00373
%@ 979-8-3503-7883-2
%P 2
%D 2025
%< 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) : [Proceedings] - IEEE, 2025. - ISBN 979-8-3503-7883-2 - doi:10.1109/IRMMW-THz61557.2025.11319759
%X We present novels methods aiming at recording THz waveforms in single-shot and high repetition rates, with high temporal resolution. This work is performed in the PhLAM-DESY collaboration framework, aiming at developing real-time diagnostics for THz sources, as well as monitoring the shapes of relativistic electron bunches in accelerators. While electro-optic probing with chirped laser probes is efficient for high repetition rate operations, it suffers from resolution and fidelity limitations, particularly for extended recording windows. To address these issues, we explore solutions based on the diversity concept, employing a multi-output electro-optic measurement system. This approach, combined with advanced reconstruction algorithms, enables faithful retrieval of the measured electric field. We have developed a new algorithm that ädapts" to laser chirp imperfections (high-order dispersion), enabling high-resolution single-shot broadband THz measurements over a long temporal window. We present the method's principle, numerical results, and the status of experimental developments at European XFEL and FLASH, demonstrating a significant advancement in high-resolution, long-duration of broadband THz characterization.
%B 50th International Conference on Infrared, Millimeter, and Terahertz Waves 
%C 17 Aug 2025 - 22 Aug 2025, Helsinki (Finland)
Y2 17 Aug 2025 - 22 Aug 2025
M2 Helsinki, Finland
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
%9 Contribution to a conference proceedingsContribution to a book
%R 10.1109/IRMMW-THz61557.2025.11319759
%U https://bib-pubdb1.desy.de/record/644514