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Publication - Professor John Rarity

    Fabrication of hybrid Fabry-Pérot microcavity using two-photon lithography for single-photon sources

    Citation

    Huerta, FO, Chen, L, Taverne, M, Hadden, J, Johnson, M, Ho, D & Rarity, J, 2018, ‘Fabrication of hybrid Fabry-Pérot microcavity using two-photon lithography for single-photon sources’. Optics Express, vol 26., pp. 33245-33252

    Abstract

    For an efficient single-photon source a high-count rate into a well-defined spectral and spatial mode is desirable. Here we have developed a hybrid planar Fabry-Pérot microcavity by using a two-photon polymerization process (2PP) where coupling between single-photon sources (diamond colour centres) and resonance modes is observed. The first step consists of using the 2PP process to build a polymer table structure around previously characterized nitrogen-vacancy (NV) centres on top of a distributed Bragg reflector (DBR) with a high reflectivity at the NV zero-phonon line (ZPL). Afterwards, the polymer structure is covered with a silver layer to create a weak (low Q) cavity where resonance fluorescence measurements from the NVs are shown to be in good agreement with analytical and Finite Difference Time Domain (FDTD) results.

    Full details in the University publications repository