Manipulating the Quasi-Normal Modes of Radially Symmetric Resonators
Optics
2023-10-23 v1
Abstract
We derive two methods for simultaneously controlling the resonance frequency, linewidth and multipolar nature of the resonances of radially symmetric structures. Firstly, we formulate an eigenvalue problem for a global shift in the permittivity of the structure to place a resonance at a particular complex frequency. Next, we employ quasi-normal mode perturbation theory to design radially graded structures with resonances at desired frequencies.
Keywords
Cite
@article{arxiv.2308.06179,
title = {Manipulating the Quasi-Normal Modes of Radially Symmetric Resonators},
author = {James R Capers and Dean A Patient and Simon A R Horsley},
journal= {arXiv preprint arXiv:2308.06179},
year = {2023}
}