Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Cherenkov-transition radiation in a waveguide partly filled with a resonance dispersion medium. / Alekhina, T.Y.; Tyukhtin, A.V.; Grigoreva, A.A.
в: Physical Review Special Topics - Accelerators and Beams, Том 18, № 9, 091302, 2015.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Cherenkov-transition radiation in a waveguide partly filled with a resonance dispersion medium
AU - Alekhina, T.Y.
AU - Tyukhtin, A.V.
AU - Grigoreva, A.A.
PY - 2015
Y1 - 2015
N2 - We analyze the electromagnetic field of a charged particle that uniformly moves in a circular waveguide and crosses a boundary between a dielectric medium, which possesses frequency dispersion of a resonant type, and a vacuum area. The investigation of the waveguide mode components is analytically and numerically performed. It is shown that Cherenkov radiation (CR) can penetrate through the boundary, and Cherenkov-transition radiation (CTR) can be excited in the vacuum region. The conditions for this effect are obtained. It is shown that the CTR can be composed of a single mode (compared with the CTR in a nondispersive dielectric, which is multimode). The amplitude of the CTR is comparable to the amplitudeof CR in an extensive range of parameters. The considered effect can be used to generate intense quasimonochromatic radiation.
AB - We analyze the electromagnetic field of a charged particle that uniformly moves in a circular waveguide and crosses a boundary between a dielectric medium, which possesses frequency dispersion of a resonant type, and a vacuum area. The investigation of the waveguide mode components is analytically and numerically performed. It is shown that Cherenkov radiation (CR) can penetrate through the boundary, and Cherenkov-transition radiation (CTR) can be excited in the vacuum region. The conditions for this effect are obtained. It is shown that the CTR can be composed of a single mode (compared with the CTR in a nondispersive dielectric, which is multimode). The amplitude of the CTR is comparable to the amplitudeof CR in an extensive range of parameters. The considered effect can be used to generate intense quasimonochromatic radiation.
U2 - 10.1103/PhysRevSTAB.18.091302
DO - 10.1103/PhysRevSTAB.18.091302
M3 - Article
VL - 18
JO - Physical Review Special Topics - Accelerators and Beams
JF - Physical Review Special Topics - Accelerators and Beams
SN - 1098-4402
IS - 9
M1 - 091302
ER -
ID: 3948120