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Pis'ma v Zh. Èksper. Teoret. Fiz., 2014, Volume 100, Issue 7, Pages 475–479 (Mi jetpl4132)  

FIELDS, PARTICLES, AND NUCLEI

Transition radiation of electrons with orbital angular momentum

A. S. Konkov, A. P. Potylitsyn, M. S. Polonskaya

Tomsk Polytechnic Institute

Abstract: Several experimental groups have recently obtained the so-called vortex electrons (electrons with orbital angular momentum (OAM) of $\ell \leq 100 \hbar$) with energies of $\sim 300$ keV. The angular momentum of such electrons becomes proportional to the OAM value, which leads to the corresponding increase of the electron magnetic moment. In this paper, we investigate the transition radiation from the “charge $+$ magnetic moment” system by means of the classical electrodynamics theory. The circular polarization of optical transition radiation reaches its maximum level to $\sim 70 %$, which allows to use this effect for the independent measurement of the electron orbital momentum value.

DOI: https://doi.org/10.7868/S0370274X14190011

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English version:
Journal of Experimental and Theoretical Physics Letters, 2014, 100:7, 421–425

Bibliographic databases:

Document Type: Article
Received: 12.08.2014
Language: English

Citation: A. S. Konkov, A. P. Potylitsyn, M. S. Polonskaya, “Transition radiation of electrons with orbital angular momentum”, Pis'ma v Zh. Èksper. Teoret. Fiz., 100:7 (2014), 475–479; JETP Letters, 100:7 (2014), 421–425

Citation in format AMSBIB
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