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Cited by 174

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Mapping Nanoscale Hotspots with Single-Molecule Emitters Assembled into Plasmonic Nanocavities Using DNA Origami

Open access
Chikkaraddy, Rohit, Turek, V. A., Kongsuwan, Nuttawut, Benz, Felix, Carnegie, Cloudy, van de Goor, Tim, de Nijs, Bart, Demetriadou, Angela, Hess, Ortwin, Keyser, Ulrich F., Baumberg, Jeremy J.·2018·Nano Letters

Abstract

Abstract Fabricating nanocavities in which optically active single quantum emitters are precisely positioned is crucial for building nanophotonic devices. Here we show that self-assembly based on robust DNA-origami constructs can precisely position single molecules laterally within sub-5 nm gaps between plasmonic substrates that support intense optical confinement. By placing single-molecules at the center of a nanocavity, we show modification of the plasmon cavity resonance before and after bleaching the chromophore and obtain enhancements of ≥4 × 103 with high quantum yield (≥50%). By varying the lateral position of the molecule in the gap, we directly map the spatial profile of the local density of optical states with a resolution of ±1.5 nm. Our approach introduces a straightforward noninvasive way to measure and quantify confined optical modes on the nanoscale.

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Crossref · 10.1021/acs.nanolett.7b04283

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Metadata

Authors
Chikkaraddy, R., Turek, V. A., Kongsuwan, N., Benz, F., Carnegie, C., van de Goor, T., de Nijs, B., Demetriadou, A., Hess, O., Keyser, U. F., & Baumberg, J. J.
Venue
Nano Letters
Published
2017-12-05
Volume
18
Issue
1
Pages
405-411
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2767185672
Cited by
174
References
1
FWCI
6.87
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Mapping Nanoscale Hotspots with Single-Molecule Emitters Assembled into Plasmonic Nanocavities Using DNA Origami. https://app.cochat.ai/papers/10.1021/acs.nanolett.7b04283
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Chikkaraddy, R., Turek, V. A., Kongsuwan, N., Benz, F., Carnegie, C., van de Goor, T., de Nijs, B., Demetriadou, A., Hess, O., Keyser, U. F., & Baumberg, J. J. (2018). Mapping Nanoscale Hotspots with Single-Molecule Emitters Assembled into Plasmonic Nanocavities Using DNA Origami. Nano Letters. https://doi.org/10.1021/acs.nanolett.7b04283

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.