Quasinormal mode solvers for resonators with dispersive materials.
J Opt Soc Am A Opt Image Sci Vis
; 36(4): 686-704, 2019 Apr 01.
Article
in En
| MEDLINE
| ID: mdl-31044992
ABSTRACT
Optical resonators are widely used in modern photonics. Their spectral response and temporal dynamics are fundamentally driven by their natural resonances, the so-called quasinormal modes (QNMs), with complex frequencies. For optical resonators made of dispersive materials, the QNM computation requires solving a nonlinear eigenvalue problem. This raises a difficulty that is only scarcely documented in the literature. We review our recent efforts for implementing efficient and accurate QNM solvers for computing and normalizing the QNMs of micro- and nanoresonators made of highly dispersive materials. We benchmark several methods for three geometries, a two-dimensional plasmonic crystal, a two-dimensional metal grating, and a three-dimensional nanopatch antenna on a metal substrate, with the perspective to elaborate standards for the computation of resonance modes.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Opt Soc Am A Opt Image Sci Vis
Journal subject:
OFTALMOLOGIA
Year:
2019
Document type:
Article