Title :
Transformation of radiation by appearance of a cylindrical plasma inclusion in a waveguide
Author :
Sakhnenko, Nataliya ; Nerukh, Alexander ; Ruzhitskaya, Nataliya
Author_Institution :
Radio Electron., Kharkov Nat. Univ., Ukraine
fDate :
6/24/1905 12:00:00 AM
Abstract :
The excitation of electromagnetic field by a line emitter in microcavity with time-varying plasma is considered. The microcavity is made up in a planar dielectric waveguide by a circular cylinder of the plasma. The cylinder is perpendicular to perfectly conducting plates of waveguide boundaries that simulates semiconductor layers of very high conductivity. It is assumed that until zero moment of time the waveguide was filled with some homogeneous dielectric medium. At zero moment of time, homogeneous time-varying plasma is created by an extrinsic source inside a cylinder of some finite radius. A vertical driving line current that is co-axial to the cylinder and has an arbitrary temporal dependence excites the electromagnetic field in the whole system. This current is considered as a sort of light emitter model and can be turned on at arbitrary moment, either before or after plasma appearance.
Keywords :
Green´s function methods; electromagnetic field theory; microcavities; plasma electromagnetic wave propagation; waveguide theory; arbitrary temporal dependence; circular cylinder; dielectric medium; electromagnetic field; electromagnetic field excitation; extrinsic source; finite radius; homogeneous time-varying plasma; line emitter; microcavity; perfectly conducting plates; planar dielectric waveguide; plasma appearance; semiconductor layers; time-varying plasma; vertical driving line current; very high conductivity; waveguide cylindrical plasma inclusion; zero moment; Conductivity; Dielectrics; Electromagnetic fields; Electromagnetic waveguides; Microcavities; Planar waveguides; Plasma simulation; Plasma sources; Plasma waves; Semiconductor waveguides;
Conference_Titel :
Transparent Optical Networks, 2002. Proceedings of the 2002 4th International Conference on
Print_ISBN :
0-7803-7375-8
DOI :
10.1109/ICTON.2002.1007865