N. A. Abramovsky, S. B. Bodrov, A. M. Kiselev, A. A. Murzanev, A. V. Romashkin, A. N. Stepanov, “Generation of picocoulomb-level electron bunches from a metal tip on femtosecond <nobr>$\rm Ti:$</nobr>Sapphire laser irradiation”, TVT, 2020, Volume 58, Issue 6,Pages <nobr>951

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Generation of picocoulomb-level electron bunches from a metal tip on femtosecond $\rm Ti:$Sapphire laser irradiation

N. A. Abramovsky^ab, S. B. Bodrov^ab, A. M. Kiselev^a, A. A. Murzanev^a, A. V. Romashkin^a, A. N. Stepanov^a

^a Federal Research Center The Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod
^b Lobachevski State University of Nizhni Novgorod

Abstract: The use of titanium-sapphire-laser radiation with a low pulse repetition rate made it possible to operate a metal tip (without its destruction) as an electron emitter at an increased intensity of laser radiation on the tip. As a result, an emission of electrons with a charge in the range of tens of picocoulombs per laser pulse was obtained from a metal tip with a characteristic radius of a curvature of $\sim1~\mu$m.

UDC: 538.971

Received: 19.06.2020
Revised: 21.08.2020
Accepted: 14.10.2020

DOI: 10.31857/S0040364420060010