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.
| Original language | English |
|---|---|
| Journal | Optics Express |
| Volume | 32 |
| Issue | 9 |
| Pages (from-to) | 15667-15679 |
| Number of pages | 13 |
| ISSN | 1094-4087 |
| DOIs | |
| Publication status | Published - Apr 2024 |