The coherence of free-electron laser (FEL) radiation has so far been accessed mainly through first and second order correlation functions. Instead, we propose to reconstruct the energy state occupation number distribution of FEL radiation, avoiding the photo-counting drawbacks with high intensities, by means of maximum likelihood techniques based on the statistics of no-click events. Though the ultimate goal regards the FEL radiation statistical features, the interest of the proposal also resides in its applicability to any process of harmonic generation from a coherent light pulse, ushering in the study of the preservation of quantum features in general non-linear optical processes.

Quantum state features of the FEL radiation from the occupation number statistics / F. Benatti, S. Olivares, G. Perosa, D. Bajoni, S. Di Mitri, R. Floreanini, L. Ratti, F. Parmigiani. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 29:24(2021 Nov 22), pp. 40374-40396. [10.1364/OE.440198]

Quantum state features of the FEL radiation from the occupation number statistics

S. Olivares
Secondo
;
2021

Abstract

The coherence of free-electron laser (FEL) radiation has so far been accessed mainly through first and second order correlation functions. Instead, we propose to reconstruct the energy state occupation number distribution of FEL radiation, avoiding the photo-counting drawbacks with high intensities, by means of maximum likelihood techniques based on the statistics of no-click events. Though the ultimate goal regards the FEL radiation statistical features, the interest of the proposal also resides in its applicability to any process of harmonic generation from a coherent light pulse, ushering in the study of the preservation of quantum features in general non-linear optical processes.
FEL radiation; FEL statistics; quantum optics; quantum state reconstruction; maximum likelihood methods
Settore FIS/03 - Fisica della Materia
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/884064
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