Title :
Aperture oscillations, enhanced transmission and polarization plane rotation in the light of natural oscillations spectrum
Author :
Perov, A.O. ; Kirilenko, A.A. ; Kolmakova, N.G. ; Prikolotin, S.A. ; Senkevich, S.L.
Author_Institution :
Inst. for Radiophys. & Electron., Kharkiv, Ukraine
Abstract :
The physical background of resonance phenomena such as the “enhanced trans-mission” (through below cutoff holes) and the “optical activity” (polarization plane rotation) is shown by the eigenoscillation analysis of various objects with C2 or C4 symmetry in a square waveguide. Units of three kinds, namely waveguide bifurcations (plane junctions), double-slot or four-slot plane-chiral irises and composite conjugated plane-chiral irises in the square waveguide are considered. New compact units based on the fringing field interaction and aimed to rotate the polarization plane by 90° (in double-slot case) or by an arbitrary angle (in four-slot case) are proposed. The conclusions are completely applicable to double-periodical structures, as a possible base for development of metamaterials.
Keywords :
eigenvalues and eigenfunctions; electromagnetic metamaterials; electromagnetic wave polarisation; oscillations; resonance; C2 symmetry; C4 symmetry; aperture oscillations; composite conjugated plane-chiral iris; double-periodical structures; double-slot chiral iris; eigenoscillation analysis; enhanced transmission; four-slot plane-chiral iris; fringing field interaction; metamaterials; natural oscillations spectrum; optical activity; plane junctions; polarization plane rotation; resonance phenomena; square waveguide; waveguide bifurcations; Optical polarization; Optical surface waves; Optical waveguides; Oscillators; Polarization; Waveguide discontinuities; C2(4) symmetry; aperture oscillations; eigenoscillations; enhanced transmission; fringing fields; optical activity; plane-chiralslotted irises; polarization rotator;
Conference_Titel :
Antenna Theory and Techniques (ICATT), 2013 IX International Conference on
Conference_Location :
Odessa
Print_ISBN :
978-1-4799-2896-5
DOI :
10.1109/ICATT.2013.6650814