ArticleNano letters2024
Plasmonic Diamond Membranes for Ultrafast Silicon Vacancy Emission.
Article in Nano letters, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Ultrafast, nonblinking single-photon sources from perovskite quantum dots in plasmonic nanocavities.Science advances · 2026Article
- Quantum efficiency of the B-center in hexagonal boron nitride.Nanophotonics (Berlin, Germany) · 2025Article
- Spatio-spectral localized modal coupling for room-temperature quantum coherence protection.Nanophotonics (Berlin, Germany) · 2025Article
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Authors and funding
12 authors.
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Abstract
Silicon vacancy centers (SiVs) in diamond have emerged as a promising platform for quantum sciences due to their excellent photostability, minimal spectral diffusion, and substantial zero-phonon line emission. However, enhancing their slow nanosecond excited-state lifetime by coupling to optical cavities remains an outstanding challenge, as current demonstrations are limited to ∼10-fold. Here, we couple negatively charged SiVs to sub-diffraction-limited plasmonic cavities and achieve an instrument-limited ≤8 ps lifetime, corresponding to a 135-fold spontaneous emission rate enhancement and a 19-fold photoluminescence enhancement. Nanoparticles are printed on ultrathin diamond membranes on gold films which create arrays of plasmonic nanogap cavities with ultrasmall volumes. SiVs implanted at 5 and 10 nm depths are examined to elucidate surface effects on their lifetime and brightness. The interplay between cavity, implantation depth, and ultrathin diamond membranes provides insights into generating ultrafast, bright SiV emission for next-generation diamond devices.
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