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TUP013 |
Diversity Enhanced Electro-Optic Sampling at EuXFEL | |
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Electro-optical detection has proven to be a valuable technique to study temporal profiles of THz pulses with pulse durations down to femtoseconds. Recently, a numerical reconstruction strategy called DEOS [1] (Diversity Electro-Optical Sampling) proved to be much more efficient in retrieving ultrafast input signals. First tests at the European X-ray FEL (EuXFEL) in Hamburg show a 200 fs temporal resolution over more than 10 ps recording length. This technique, however, requires to measure both orthogonal polarizations of the sampling laser pulse simultaneously. Further adaptations to the existing design of the compact EOD bunch length monitor [2] are needed to fully implement the new measurement strategy, which will be presented in this paper.
[1] E. Roussel, C. Szwaj, C. Evain, B. Steffen, C. Gerth, B. Jalali and S. Bielawski, Light Sci. Appl., vol. 11, p. 14, 2022. doi:10.1038/s41377-021-00696-2 [2] B. Steffen, Ch. Gerth, M. Caselle, M. Felber, T. Kozak, D. R. Makowski, U. Mavric, A. Mielczarek, P. Peier, K. Przygoda, and L. Rota, Sci. Instrum., vol 91, p. 045123, 2020. doi:10.1063/1.5142833 |
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