ArticleNanomaterials (Basel, Switzerland)2021
Near-Field Excitation of Bound States in the Continuum in All-Dielectric Metasurfaces through a Coupled Electric/Magnetic Dipole Model.
Article in Nanomaterials (Basel, Switzerland), 2021. 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.
- Superchiral Light Emerging from Bound States in the Continuum in Metasurfaces of Si Nanorod Dimers.ACS photonics · 2024Article
- Quasi-BIC based all-dielectric metasurfaces for ultra-sensitive refractive index and temperature sensing.Scientific reports · 2023Article
- Tailoring Polarization Conversion in Achiral All-Dielectric Metasurfaces by Using Quasi-Bound States in the Continuum.Nanomaterials (Basel, Switzerland) · 2022Article
- Manipulating Optical Scattering of Quasi-BIC in Dielectric Metasurface with Off-Center Hole.Nanomaterials (Basel, Switzerland) · 2021Article
- Unveiling the Symmetry Protection of Bound States in the Continuum with Terahertz Near-Field Imaging.ACS photonics · 2021Article
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Authors and funding
2 authors.
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Abstract
Resonant optical modes arising in all-dielectric metasurfaces have attracted much attention in recent years, especially when so-called bound states in the continuum (BICs) with diverging lifetimes are supported. With the aim of studying theoretically the emergence of BICs, we extend a coupled electric and magnetic dipole analytical formulation to deal with the proper metasurface Green function for the infinite lattice. Thereby, we show how to excite metasurface BICs, being able to address their near-field pattern through point-source excitation and their local density of states. We apply this formulation to fully characterize symmetry-protected BICs arising in all-dielectric metasurfaces made of Si nanospheres, revealing their near-field pattern and local density of states, and, thus, the mechanisms precluding their radiation into the continuum. This formulation provides, in turn, an insightful and fast tool to characterize BICs (and any other leaky/guided mode) near fields in all-dielectric (and also plasmonic) metasurfaces, which might be especially useful for the design of planar nanophotonic devices based on such resonant modes.
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