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- Title
Excitation of Eigenwaves by a Vortex Electromagnetic Beam in a Semi-Infinite Cylinder Filled with a Gyrotropic Medium.
- Authors
Es'kin, V. A.; Kudrin, A. V.
- Abstract
We study the diffraction of a Laguerre–Gaussian electromagnetic vortex beam by the end of a semi-infinite cylinder filled with a gyrotropic medium. A system of integral equations for the coefficients of eigenfunction expansions of the field in free half-space and the half-space, which contains the cylinder, is obtained and solved. The possibility of frequency-selective excitation of the lowest eigenmodes of the cylinder with given azimuthal indices by a Laguerre–Gaussian beam with the corresponding values of the topological charge is demonstrated.
- Subjects
VECTOR beams; EIGENFUNCTION expansions; LAGUERRE-Gaussian beams; INTEGRAL equations; ELECTROMAGNETIC pulses
- Publication
Radiophysics & Quantum Electronics, 2021, Vol 64, Issue 1, p26
- ISSN
0033-8443
- Publication type
Article
- DOI
10.1007/s11141-021-10109-4