Narrow-linewidth Fano microcavities with resonant subwavelength grating mirror
Optics
2024-04-16 v1
Abstract
We report on the theoretical and experimental investigations of optical microcavities consisting in the plane-plane arrangement of a broadband high-reflectivity mirror and a suspended one-dimensional grating mirror possessing a high-quality factor Fano resonance. By varying the length of these cavities from the millimeter to the few-micron range, we observe at short lengths the reduction of the spectral linewidth predicted to occur for such a Fano cavity as compared to a conventional broadband mirror cavity with the same length and internal losses. Such narrow linewidth and small modevolume microcavities with high-mechanical quality ultrathin mirrors will be attractive for a wide range of applications within optomechanics and sensing.
Cite
@article{arxiv.2402.05597,
title = {Narrow-linewidth Fano microcavities with resonant subwavelength grating mirror},
author = {Trishala Mitra and Gurpreet Singh and Ali Akbar Darki and Søren Peder Madsen and Aurélien Dantan},
journal= {arXiv preprint arXiv:2402.05597},
year = {2024}
}