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arXiv · 2508.07848

Optical microcavity with a pair of suspended resonant mirrors

Mikkel Kirkegaard·Trishala Mitra·Gurpreet Singh·Aurélien Dantan
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Abstract

We report on the realization of an optical microcavity consisting in the plane-plane arrangement of two suspended resonant mirrors possessing spectrally overlapping high-quality factor internal resonances. We first investigate its generic transmission spectra as the cavity length is varied on the basis of a simple linear Fabry-Perot model, compare them with those of broadband mirror cavities or Fano cavities possessing a single resoannt mirror, and then present an experimental realization using a pair of highly pretensioned, ultrathin silicon nitride films patterned with one-dimensional photonic crystal structures.

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Mikkel Kirkegaard, Trishala Mitra, Gurpreet Singh, Aurélien Dantan. 2025-08-11. Optical microcavity with a pair of suspended resonant mirrors. https://doi.org/10.1364/optcon.582905

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