Strongly resonant silicon slot metasurfaces with symmetry-protected bound states in the continuum Article Swipe
José Francisco Algorri
,
Francesco Dell’Olio
,
Pablo Roldán-Varona
,
Luis Rodŕıguez-Cobo
,
José Miguel López Higuera
,
José Manuel Sánchez‐Pena
,
Dimitrios C. Zografopoulos
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1364/oe.415377
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1364/oe.415377
In this work, a novel all-dielectric metasurface made of arrayed circular slots etched in a silicon layer is proposed and theoretically investigated. The structure is designed to support both Mie-type multipolar resonances and symmetry-protected bound states in the continuum (BIC). Specifically, the metasurface consists of interrupted circular slots, following the paradigm of complementary split-ring resonators. This configuration allows both silicon-on-glass and free-standing metasurfaces and the arc length of the split-rings provides an extra tuning parameter. The nature of both BIC and non-BIC resonances supported by the metasurface is investigated by employing the Cartesian multipole decomposition technique. Thanks to the non-radiating nature of the quasi-BIC resonance, extremely high Q -factor responses are calculated, both by fitting the simulated transmittance spectra to an extended Fano model and by an eigenfrequency analysis. Furthermore, the effect of optical losses in silicon on quenching the achievable Q -factor values is discussed. The metasurface features a simple bulk geometry and sub-wavelength dimensions. This novel device, its high Q -factors, and strong energy confinement open new avenues of research on light-matter interactions in view of new applications in non-linear devices, biological sensors, and optical communications.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1364/oe.415377
- OA Status
- gold
- Cited By
- 91
- References
- 92
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3134439389
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3134439389Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1364/oe.415377Digital Object Identifier
- Title
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Strongly resonant silicon slot metasurfaces with symmetry-protected bound states in the continuumWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2021Year of publication
- Publication date
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2021-03-02Full publication date if available
- Authors
-
José Francisco Algorri, Francesco Dell’Olio, Pablo Roldán-Varona, Luis Rodŕıguez-Cobo, José Miguel López Higuera, José Manuel Sánchez‐Pena, Dimitrios C. ZografopoulosList of authors in order
- Landing page
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https://doi.org/10.1364/oe.415377Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.1364/oe.415377Direct OA link when available
- Concepts
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Multipole expansion, Fano resonance, Optics, Physics, Resonator, Q factor, Silicon, Metamaterial, Transmittance, Wavelength, Dielectric, Resonance (particle physics), Optoelectronics, Atomic physics, Plasmon, Quantum mechanicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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91Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 9, 2024: 17, 2023: 19, 2022: 33, 2021: 13Per-year citation counts (last 5 years)
- References (count)
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92Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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