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arXiv · 2207.03676

Multi-resonant open-access micro-cavity arrays for light matter interaction

Thomas H. Doherty·Axel Kuhn·Ezra Kassa
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Abstract

We report the realisation of a high-finesse open-access cavity array, tailored towards the creation of multiple coherent light-matter interfaces within a compact environment. We describe the key technical developments put in place to fabricate such a system, comprising the creation of tapered pyramidal substrates and an in-house laser machining setup. Cavities made from these mirrors are characterised, by laser spectroscopy, to possess similar optical properties to state-of-the-art fibre-tip cavities, but offer a compelling route towards improved performance, even when used to support only a single mode. The implementation of a 2 by 2 cavity array and the independent frequency tuning between at least three neighbouring sites are demonstrated.

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Thomas H. Doherty, Axel Kuhn, Ezra Kassa. 2022-07-08. Multi-resonant open-access micro-cavity arrays for light matter interaction. https://doi.org/10.1364/oe.475921

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