Coulomb interactions in sharp tip pulsed photo field emitters

Journal article (2016)

Authors

B.J. Cook ImPhys/Charged Particle Optics
P. Kruit ImPhys/Charged Particle Optics
Research Group
ImPhys/Charged Particle Optics
Copyright: © 2016 B.J. Cook, P. Kruit
DOI: https://doi.org/10.1063/1.4963783
Schottky barriers Field emitters Poisson's equation Brightness Field emission
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Published Date

10-10-2016

Language

English

Research Group

ImPhys/Charged Particle Optics

Abstract

Photofield emitters show great potential for many single electron pulsed applications. However, for the brightest pulses > 10 11 A / (m 2 sr V), our simulations show that Poisson statistics and stochastic Coulomb interactions limit the brightness and increase the energy spread even with an average of a single electron per pulse. For the systems, we study we find that the energy spread is probably the limiting factor for most applications.