Electro-Optical Detection of Coherent Radiation Induced by Relativistic Electron Bunches in the Near and Far Fields

A. Curcio, M. Anania, F. Bisesto, M. Botton, M. Castellano, E. Chiadroni, A. Cianchi, M. Ferrario, M. Galletti, D. Giulietti, Z. Henis, M. Petrarca, R. Pompili, E. Schleifer, A. Zigler

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11 Scopus citations


Coherent radiation produced by relativistic charged bunches is nowadays of great interest for user-oriented applications and high-resolution diagnostics. Here we present experimental results obtained by using a temporal monitor based on the electro-optical sampling that allows us to reveal the features of the radiation emitted in terahertz range by ultrashort electron bunches moving in proximity to a nonlinear crystal. We investigate the radiation properties both in near- and far-field conditions by employing electron beams accelerated by a conventional photoinjector and through laser-plasma interactions. Our results indicate that the emitted radiation moves collinearly with the beam in one case, while its properties resemble those of the classical Cherenkov radiation in a second case.

Original languageAmerican English
Article number024004
JournalPhysical Review Applied
Issue number2
StatePublished - 6 Feb 2018

Bibliographical note

Funding Information:
This work is partially supported by the EU Commission in the Seventh Framework Program, Grant No. 312453 EuCard-2 and by the Italian Ministry of Research in the framework of Fondo per gli Investimenti della Ricerca di Base, Project No. RBFR12NK5K.

Publisher Copyright:
© 2018 American Physical Society.


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