ArticleScientific reports2021
Multipolar-sensitive engineering of magnetic dipole spontaneous emission with a dielectric nanoresonator antenna.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Metasurfaces with Multipolar Resonances and Enhanced Light-Matter Interaction.Nanomaterials (Basel, Switzerland) · 2025Review
- Multi-octave metasurface-based refractory superabsorber enhanced by a tapered unit-cell structure.Scientific reports · 2022Article
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Authors and funding
4 authors.
Funding
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Abstract
We propose an axisymmetric silicon nanoresonator with designed tapered angle well for the extraordinary enhancement of the decay rate of magnetic dipole (MD) emitters. Due to the resonant coupling of a MD emitter and the MD mode of the subwavelength resonator, the Purcell factor (PF) can easily reach 500, which is significantly higher than the PF when using a silicon nanosphere of the same size. The PF and the resonance frequency are conveniently tuned through the resonator diameter and the taper angle of the blind hole. When supported by a metallic substrate, further enhancement ([Formula: see text]) of the MD spontaneous emission is triggered by an image-induced quadrupolar high-Q mode of the nanoantenna. For the sake of comparison we include a critical analysis of the canonical problem that considers a Si spherical shell. Our results might facilitate a novel strategy for promising realizations of chip-scale nanophotonic applications.
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Registered trials
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