Directional Emission from a Microdisk Resonator with a Linear Defect
凝聚态物理
2015-06-24 v1
摘要
Microdisk resonator with a linear defect at some distance away from the circumference is studied theoretically. We demonstrate that the presence of the defect leads to ({\em i}) enhancement of the output efficiency, and ({\em ii}) directionality of the outgoing light. The dependence of the radiative losses and of the far-field distribution on the position and orientation of the defect are calculated. The angular dependence of the far field is given by a lorentzian with a width that has a sharp minimum for a certain optimal orientation of the defect line. For this orientation the whispering-gallery mode of a circular resonator is scattered by the extended defect in the direction normal to the disk boundary.
引用
@article{arxiv.cond-mat/0203220,
title = {Directional Emission from a Microdisk Resonator with a Linear Defect},
author = {V. M. Apalkov and M. E. Raikh},
journal= {arXiv preprint arXiv:cond-mat/0203220},
year = {2015}
}
备注
6 pages including 2 figures