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@inproceedings{galyamin:ipac2021-tupab249,
author = {S.N. Galyamin and A.V. Tyukhtin and V.V. Vorobev},
title = {{Diffraction at the Open-Ended Dielectric-Loaded Circular Waveguide}},
booktitle = {Proc. IPAC'21},
pages = {2033--2035},
eid = {TUPAB249},
language = {english},
keywords = {GUI, radiation, wakefield, electron, acceleration},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-TUPAB249},
url = {https://jacow.org/ipac2021/papers/tupab249.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB249},
abstract = {{Contemporary beam and THz technologies are tightly interlaced during last years. Strong THz fields allow realization of THz driven electron guns, THz bunch compression, streaking* and THz driven wakefield acceleration**. Inversely, dielectric capillaries similar to those used for THz bunch manipulation can be in turn utilized for development of high-power narrow-band THz sources***. Mentioned cases involve interaction of THz waves and particle bunches with an open end of certain dielectric loaded waveguide structure, most frequently a circular capillary. For further development of the discussed prospective topics a rigorous approach allowing analytical investigation of both radiation from open-ended capillaries and their excitation by external source would be extremely useful. We present an elegant and efficient rigorous method for solving circular open-ended dielectric-loaded waveguide diffraction problems based on Wiener-Hopf technique. We deal with the case of uniform dielectric loading and internal excitation by a waveguide mode. S-parameters, near-field and far-field distributions are presented. The obtained results can be also applied to the narrow band wakefield.}},
}