ArticleLight, science & applications2024
Single-emitter super-resolved imaging of radiative decay rate enhancement in dielectric gap nanoantennas.
Article in Light, science & applications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Fused deep learning enables 6D single-molecule localization in polarization-resolved microscopy.Methods and applications in fluorescence · 2026Article
- Near-field probing of the local density of optical states enhanced by bound states in the continuum in nonlocal metasurfaces.Nature communications · 2025Article
- Single molecule orientation and localization microscopy.Nature photonics · 2025Article
- Tuning the spontaneous emission of CdTe quantum dots with hybrid silicon-gold nanogaps.RSC advances · 2025Article
- A review of gallium phosphide nanophotonics towards omnipotent nonlinear devices.Nanophotonics (Berlin, Germany) · 2024Review
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Authors and funding
8 authors.
Funding
Abstract
High refractive index dielectric nanoantennas strongly modify the decay rate via the Purcell effect through the design of radiative channels. Due to their dielectric nature, the field is mainly confined inside the nanostructure and in the gap, which is hard to probe with scanning probe techniques. Here we use single-molecule fluorescence lifetime imaging microscopy (smFLIM) to map the decay rate enhancement in dielectric GaP nanoantenna dimers with a median localization precision of 14 nm. We measure, in the gap of the nanoantenna, decay rates that are almost 30 times larger than on a glass substrate. By comparing experimental results with numerical simulations we show that this large enhancement is essentially radiative, contrary to the case of plasmonic nanoantennas, and therefore has great potential for applications such as quantum optics and biosensing.
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Registered trials
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