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    Rights statement: Copyright 2020 American Institute of Physics. The following article appeared in Applied Physics Letters, 118, 2021 and may be found at https://doi.org/10.1063/5.0041391 This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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Dispersion in dielectric-lined waveguides designed for terahertz-driven deflection of electron beams

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Article number144102
<mark>Journal publication date</mark>30/04/2021
<mark>Journal</mark>Applied Physics Letters
Issue number14
Volume118
Publication StatusPublished
Early online date6/04/21
<mark>Original language</mark>English

Abstract

We have developed dielectric-lined rectangular waveguide structures for terahertz (THz)-driven ultrafast deflection of 100 keV electron beams. The structures were designed to achieve THz phase velocity matching with co-propagating electron bunches.
The phase-matching capability was experimentally confirmed through time-frequency analysis of the broadband coherent THz transmission measured by electro-optic sampling. The analysis determined both the frequency dependent propagation constants in the electron interaction region, and the propagation characteristics of the integrated THz tapered coupler.

Bibliographic note

Copyright 2020 American Institute of Physics. The following article appeared in Applied Physics Letters, 118, 2021 and may be found at https://doi.org/10.1063/5.0041391 This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.