Correlated electron beam microbunching and shot-noise characterization with near-and far-field optical transition radiation

Ariel Nause, Reuven Ianconescu, Avraham Gover

Research output: Contribution to journalArticlepeer-review

Abstract

In this work we demonstrate how to analyze the dynamics of the correlated longitudinal current noise above andbelow the Poissonian shot-noise level in an e-beam, by calculating the emitted transition radiation (OTR) using acomplex vector field formulation which is exact in the near and far fields. We simulate a non-zero emittanceelectron beam, uncorrelated in the transverse cross section, but with different types of longitudinal correlations,resulting in coherent optical transition radiation. We show how this method is applied on the opposite case(suppression), by tracking simulated beam particles that correlate due to quarter-plasma oscillation during drift,and show how the OTR tracks the dynamics of the electron beam noise level.

Original languageEnglish
Pages (from-to)2869-2875
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Volume35
Issue number11
DOIs
StatePublished - 1 Nov 2018

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