Microcavity resonance condition, quality factor, and mode volume are determined by different penetration depths

Posted on 19.02.2021 - 17:45
The penetration depth in a Distributed Bragg Reflector (DBR) co-determines the resonance condition, quality factor, and mode volume of DBR-based microcavities. Recent studies have used an incomplete description of the penetration depth, which has lead to incorrect equations. This paper resolves this confusion by presenting a complete analysis that involves three different penetration depths. We also present a series of experiments on microcavities to accurately determine the frequency and modal penetration depth of our DBRs and compare these results with theoretical predictions. The obtained results are relevant for anyone who models a DBR as an effective hard mirror.

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Koks, Corné; van Exter, Martin (2021): Microcavity resonance condition, quality factor, and mode volume are determined by different penetration depths. The Optical Society. Collection. https://doi.org/10.6084/m9.figshare.c.5173268.v2
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