Diamond Quantum Sensing

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An inverse-designed silicon nitride photonic circuit can efficiently extract and route broadband red emission from diamond nitrogen-vacancy centers to enable compact quantum spin sensing. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

doi:10.1002/nap2.70287

September 3, 2026NanophotonicsOpen Access

Diamond Quantum Sensing

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Key Points

Integrate diamond nitrogen-vacancy centers with an inverse-designed silicon nitride photonic circuit to create a compact, chip-scale platform for quantum spin sensing.
Coupled green pump light into an inverse-designed silicon nitride photonic emitter.
Excited diamond nitrogen-vacancy centers and captured their broadband photoluminescence on-chip.
Achieved efficient excitation of diamond nitrogen-vacancy centers using the integrated photonic emitter.
Successfully extracted and guided broadband red emission directly through on-chip waveguides for compact spin sensing.

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Implication

Experimental study demonstrates efficient extraction of diamond nitrogen-vacancy emissions using silicon nitride photonics, indicating potential for compact quantum spin sensing.

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A 2026 study studied this question.

synapsesocial.com/papers/6a9bd4726b95aff0620ec2c3 https://doi.org/10.1002/nap2.70287

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Diamond Quantum Sensing

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Implication

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Diamond Quantum Sensing

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Implication

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