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arXiv · 1909.09383

Single photon emission and single spin coherence of a nitrogen vacancy centre encapsulated in silicon nitride

Joe A. Smith·Jorge Monroy-Ruz·John G. Rarity·Krishna C. Balram
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Abstract

Finding the right material platform for engineering efficient photonic interfaces to solid state emitters has been a long-standing bottleneck for scaling up solid state quantum systems. In this work, we demonstrate that nitrogen-rich silicon nitride, with its low background auto-fluorescence at visible wavelengths, is a viable quantum photonics platform by showing that nitrogen vacancy centres embedded in nanodiamonds preserve both their quantum optical and spin properties post-encapsulation. Given the variety of high-performance photonic components already demonstrated in silicon nitride, our work opens up a new avenue for building integrated photonic circuits using solid state emitters.

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Joe A. Smith, Jorge Monroy-Ruz, John G. Rarity, Krishna C. Balram. 2019-09-20. Single photon emission and single spin coherence of a nitrogen vacancy centre encapsulated in silicon nitride. https://doi.org/10.1063/5.0002709

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