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Kvantovaya Elektronika, 2014 Volume 44, Number 3, Pages 259–262 (Mi qe15884)

Ultrashort electron pulses

Formation of ultrashort electron pulses in an electrostatic laser reflectron-deflector

S. A. Aseev, B. N. Mironov, S. V. Chekalin, V. G. Minogin

Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow

Abstract: The temporal compression of photoelectron pulses obtained by irradiation of the target by femtosecond electron pulses is analysed by using an electrostatic reflectron with a deflecting pulse laser field. It is shown that the use of a reflectron-deflector allows one both to generate and deflect ultrashort, ~30-fs electron pulses with a countable number of electrons by focusing them into a given region with a focal size about tens of microns. It is found that the laser ponderomotive potential can play a role of a dispersive element in the electrostatic reflectron to spatially separate the electron pulses with different energies.

Keywords: electron beam, femtosecond laser pulses, focusing, deflection, pulse compression.

PACS: 41.75.Fr, 41.75.Jv, 42.62.-b, 07.78.+s

Received: 24.12.2013


 English version:
Quantum Electronics, 2014, 44:3, 259–262

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© Steklov Math. Inst. of RAS, 2024