Investigation of the resonance field structure in an open resonator by the probe method: Theory and experiment

摘要

The mode structure in a 2D open resonator is reconstructed with the probe method in numerical and full-scale experiments. The domain of applicability of this method, which is specified by the continuous variation of the eigenmode phase in the open resonator, is found. A probe-induced change in the diffraction Q factor of the eigenmode does not necessarily meet its amplitude distribution in the open resonator. The potential of the probe method for estimation of the energy characteristics of modes in open resonators is discussed.