Excitation of absorbing exceptional points in the time domain
Optics
2022-10-18 v2
Abstract
We analyze the time-domain dynamics of resonators supporting exceptional points (EPs), at which both the eigenfrequencies and the eigenmodes associated with perfect capture of an input wave coalesce. We find that a time-domain signature of the EP is an expansion of the class of waveforms which can be perfectly captured. We show that such resonators have improved performance for storage or transduction of energy. They also can be used to convert between waveforms within this class. We analytically derive these features and demonstrate them for several examples of coupled optical resonator systems.
Keywords
Cite
@article{arxiv.2202.10567,
title = {Excitation of absorbing exceptional points in the time domain},
author = {Asaf Farhi and Ahmed Mekawy and Andrea Alu and Douglas Stone},
journal= {arXiv preprint arXiv:2202.10567},
year = {2022}
}