Resonance increase in the Q-factors of electric-type eigenmodes in an open resonator with a spherical metal insert

Abstract

We present results of the numerical simulation performed to study the properties of electrictype eigenmodes in an open resonator with spherical mirrors and a perfectly conducting spherical inclusion. The effect of a resonance increase in the Q-factors of the eigenmodes by several orders of magnitude, which is due to placing a perfectly conducting sphere of certain radius in the open resonator, is found and studied. The nature of the effect of a resonance increase in the Q-factors of eigenmodes is established.