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

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.

5 pages, 4 figures. Results unchanged, arguments revised

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Cited by in corpus (8)

• Room temperature single-photon emitters in silicon nitride
• Cavity-Enhanced 2D Material Quantum Emitters Deterministically Integrated with Silicon Nitride Microresonators
• Silicon nitride waveguides with intrinsic single-photon emitters for integrated quantum photonics
• The NV centre coupled to an ultra-small mode volume cavity: a high efficiency source of indistinguishable photons at 200 K
• Heterogeneous integration of solid state quantum systems with a foundry photonics platform
• Towards compact high-efficiency grating couplers for visible wavelength photonics
• Telecom-to-Visible Quantum Frequency Converter on a Silicon Nitride Chip
• Photoionization detection of a single Er${}^{3+}$ ion with sub-100-ns time resolution