Self‐Assembled Silicon@Silica Metasurfaces with High‐Quality Resonances in the Infrared

2D assemblies of resonant dielectric particles constitute promising materials for the next generation of photonic devices, thanks to their low optical losses and intense electromagnetic response. However, bottom-up synthesis methods present many difficulties when targeting metasurface applications, particularly due to the high degree of positional disorder and the size dispersion of the resonant particles. This work presents the fabrication of core-shell silicon@silica particles with multipolar resonances in the visible and near-infrared. These resonant particles are then assembled at an air-water interface into a semi-ordered array with islands of crystallinity. The assembly is deposited on quartz and the optical properties are characterized with ellipsometry and optical microscopy. The effective medium of this material appears to display a magnetic resonance with a high-quality factor at ≈945 nm, as demonstrated by a Lorentzian resonance in the permeability. Thus, this is the first bottom-up synthesis of silicon particle assemblies known to generate optical magnetism, giving promise for the scalable production of high-performance metasurfaces, in spite of the imperfections associated with bottom-up fabrication.

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Publication Details

Journal
Small Science
Published
2025-05-15
DOI
https://doi.org/10.1002/smsc.202500119
Citations
1
Primary Topic
Metamaterials and Metasurfaces Applications
Type
article
Field-Weighted Citation Impact
0.43

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article

Self‐Assembled Silicon@Silica Metasurfaces with High‐Quality Resonances in the Infrared

Megan A. Parker, Raul Barbosa, Vasyl G. Kravets, Glenna L. Drisko et al.
1 citations
Small Science
Metamaterials and Metasurfaces Applications
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article

Self‐Assembled Silicon@Silica Metasurfaces with High‐Quality Resonances in the Infrared

Megan A. Parker, Raul Barbosa, Vasyl G. Kravets, Glenna L. Drisko, David Montero, Brian A. Korgel, Cynthia Cibaka‐Ndaya, Maria Letizia De Marco, Virginie Ponsinet, Alexánder Castro Grijalba, Alexander N. Grigorenko, Sabrina Lacomme, Lucien Roach, A. Azéma, Philippe Barois
article en
1 citations

Abstract

2D assemblies of resonant dielectric particles constitute promising materials for the next generation of photonic devices, thanks to their low optical losses and intense electromagnetic response. However, bottom-up synthesis methods present many difficulties when targeting metasurface applications, particularly due to the high degree of positional disorder and the size dispersion of the resonant particles. This work presents the fabrication of core-shell silicon@silica particles with multipolar resonances in the visible and near-infrared. These resonant particles are then assembled at an air-water interface into a semi-ordered array with islands of crystallinity. The assembly is deposited on quartz and the optical properties are characterized with ellipsometry and optical microscopy. The effective medium of this material appears to display a magnetic resonance with a high-quality factor at ≈945 nm, as demonstrated by a Lorentzian resonance in the permeability. Thus, this is the first bottom-up synthesis of silicon particle assemblies known to generate optical magnetism, giving promise for the scalable production of high-performance metasurfaces, in spite of the imperfections associated with bottom-up fabrication.

Small ScienceVol. 5(7)
Centre National de la Recherche Scientifique (FR), Université de Bordeaux (FR), Inserm (FR), Université Fédérale de Toulouse Midi-Pyrénées (FR), Laboratoire d'Analyse et d'Architecture des Systèmes (FR), University of Manchester (GB), Sorbonne Université (FR), Institut de Chimie de la Matière Condensée de Bordeaux (FR), Centre d’Élaboration de Matériaux et d’Études Structurales (FR), Centre de recherche Paul Pascal (FR), Institut Polytechnique de Bordeaux (FR), Bordeaux Imaging Center (FR), Fédération de Chimie et Matériaux de Paris-Centre (FR), The University of Texas at Austin (US)
National Science Foundation, Welch Foundation, European Commission, Agence Nationale de la Recherche, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, Sorbonne Université
Openalex Percentile: Top 42%
Metamaterials and Metasurfaces Applications
0.43
DOIOpen Access PDFOpenAlex
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