What is it about?

Finding the right material platform for 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 is a viable platform by showing that nitrogen vacancy centers embedded in nanodiamonds preserve both their quantum optical and spin properties when encapsulated in the film.

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Why is it important?

This work moves away from finding the right type of atom-like system to an approach with the focus on integrating many atom-like emitters in a chip-scale technology


For the first time, we demonstrated how to integrate single atom-like systems that have coherent memories into a chip-scale photonic material. I hope this silicon nitride platform will be useful for other types of atom-like systems and that are techniques of characterising the same emitter before and after encapsulation to clearly see the effect makes sense.

Joe Smith
University of Bristol

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This page is a summary of: Single photon emission and single spin coherence of a nitrogen vacancy center encapsulated in silicon nitride, Applied Physics Letters, March 2020, American Institute of Physics, DOI: 10.1063/5.0002709.
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