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

• URL: http://arxiv.org/abs/1909.09383v3
• Date: Thu, 15 May 2025 13:47:05 GMT
• Title: Single photon emission and single spin coherence of a nitrogen vacancy centre encapsulated in silicon nitride
• Authors: Joe A. Smith, Jorge Monroy-Ruz, John G. Rarity, Krishna C. Balram,
• Abstract summary: nitrogen-rich silicon nitride is a viable quantum photonics platform.<n>Nitrogen vacancy centres embedded in nanodiamonds preserve both their quantum optical and spin properties post-encapsulation.
• Score: 0.07499722271664144
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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