Cylindrical periodic surface lattice as a metadielectric : concept of a surface-field Cherenkov source of coherent radiation
Konoplev, I. V. and MacLachlan, A. J. and Robertson, Craig and Cross, A. W. and Phelps, A. D. R. (2011) Cylindrical periodic surface lattice as a metadielectric : concept of a surface-field Cherenkov source of coherent radiation. Physical Review A, 84 (1). 013826. ISSN 1094-1622
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Abstract
A two-dimensional (2D), cylindrical, periodic surface lattice (PSL) forming a surface field cavity is considered. The lattice is created by introducing 2D periodic perturbations on the inner surface of a cylindrical waveguide. The PSL facilitates a resonant coupling of the surface and near cutoff volume fields, leading to the formation of a high-Q cavity eigenmode. The cavity eigenmode is described and investigated using a modal approach, considering the model of a cylindrical waveguide partially loaded with a metadielectric. By using a PSL-based cavity, the concept of a high-power, 0.2-THz Cherenkov source is developed. It is shown that if the PSL satisfies certain defined conditions, single-mode operation is observed.
Creators(s): |
Konoplev, I. V., MacLachlan, A. J. ![]() ![]() ![]() ![]() | Item type: | Article |
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ID code: | 35424 |
Keywords: | band gap structures, plasmon polaritons, excitation, two dimensional Bragg, 2-D Bragg, periodic surface lattice, Cherenkov maser, metadielectric, high-Q cavity, relativistic electron beam tubes, electron beams, vacuum electronics, Physics, Atomic and Molecular Physics, and Optics |
Subjects: | Science > Physics |
Department: | Faculty of Science > Physics |
Depositing user: | Pure Administrator |
Date deposited: | 01 Nov 2011 05:22 |
Last modified: | 26 Feb 2021 03:54 |
Related URLs: | |
URI: | https://strathprints.strath.ac.uk/id/eprint/35424 |
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