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Plasmonic Nanodiamonds
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DOI：10.1021/acs.nanolett.3c01514.png)
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摘要
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While nitrogen-vacancy (NV) centers in diamonds haveemerged aspromising solid-state quantum emitters for sensing applications, thetantalizing possibility of coupling them with photonic or broadbandplasmonic nanostructures to create ultrasensitive biolabels has notbeen fully realized. Indeed, it remains technologically challengingto create free-standing hybrid diamond-based imaging nanoprobes withenhanced brightness and high temporal resolution. Herein, we leveragethe bottom-up DNA self-assembly to develop hybrid free-standing plasmonicnanodiamonds, which feature a closed plasmonic nanocavity completelyencapsulating a single nanodiamond. Correlated single nanoparticlespectroscopical characterizations suggest that the plasmonic nanodiamonddisplays dramatically and simultaneously enhanced brightness and emissionrate. We believe that they hold huge potential to serve as a stablesolid-state single-photon source and could serve as a versatile platformto study nontrivial quantum effects in biological systems with enhancedspatial and temporal resolution.
Keyword:
diamonds
NV centers
DNA self-assembly
plasmonic nanocavity
spontaneous emission
期刊
IF:
9.1
论文数:
2.7W
被引数:
16.5W
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