Wakefield acceleration in multilayer dielectric waveguide with usage of ring beam

Altmark, A.; Lesiv, Nikita; Mukhamedgaliev, K.

doi:10.1088/1742-6596/1145/1/012039

Cited by 1 publication

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“…However, much more complex structures including those incorporating metamaterials have also been considered. [11,12] Recently, a promising modification to the aforementioned two-layer capillary has been proposed. [13] The authors of Ref.…”

Section: Introductionmentioning

confidence: 99%

Radiation of a TM mode from an open end of a three-layer dielectric capillary

Galyamin,

Altmark

2024

Chinese Phys. B

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Modern trends in beam-driven radiation sources include the interaction of Cherenkov wakefields with open-ended circular waveguides with complicated dielectric linings, with a three-layer dielectric capillary recently proposed to reduce radiation divergence being a representative example [Jiang S et al. 2020 Opt. Lett. 45 5416]. This paper presents a rigorous approach that allows for an analytical description of the electromagnetic processes that occur when the structure is excited by a single waveguide TM mode. In other words, the corresponding canonical waveguide diffraction problem is solved in a rigorous formulation. This is a continuation of our previous papers which considered simpler cases with a homogeneous or two-layer dielectric filling. Here, we use the same analytical approach based on the Wiener-Hopf-Fock technique and deal with the more complicated case of a three-layer dielectric lining. Using the obtained rigorous solution, we discuss the possibility of manipulating the far-field radiation pattern using a third layer made of a low permittivity material.

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Section: Introductionmentioning

confidence: 99%