Analysis of scattering of the open resonator fieldfrom the cavity-backed aperture

Oleg Belous

doi:10.1117/12.2298540

30 August 1993 Analysis of scattering of the open resonator fieldfrom the cavity-backed aperture

Oleg Belous

Author Affiliations +

Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 210430 (1993) https://doi.org/10.1117/12.2298540
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom

Abstract

Resonance inhomogeneities as cavity-backed apertures are proposedfor the mode selection in open resonators. The suggested cavity-backedapertures inhomogeneities is a perfectly conductive circular cylinderwith a longitudinal slot. A superposition of two plane wavespropagating in opposite directions is considered as an incident fieldin the theoretical research. It is shown that the slotted cylinder canboth be imperceptible for an initial stationary wave field andefficiently scattered it in dependance of the parameters of thecylinder. The experimental results in the 8mm wave band are in goodagreement with numerical data. An rotation of the cylinder or itsshift from the determined position toward the open resonator mirrorslead to the considerable increasing of the scattered field energy andconsequently to decreasing the open resonator Q.

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Oleg Belous "Analysis of scattering of the open resonator fieldfrom the cavity-backed aperture", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 210430 (30 August 1993); https://doi.org/10.1117/12.2298540

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