Fabrication of spectrally sharp Si-based dielectric resonators: combining etaloning with Mie resonances

Autor: D. Toliopoulos, 1, 2 M. Khoury, 1 M. Bouabdellaoui, 1 N. Granchi, 3 J.-B. Claude, 4 A. Benali, 1 I. Berbezier, 1 D. Hannani, 1 A. Ronda, 1 J. Wenger, 4 M. Bollani, 5 M. Gurioli, 1 S. Sanguinetti, 2, 5 F. Intonti, 3, M. Abbarchi1
Přispěvatelé: Institut des Matériaux, de Microélectronique et des Nanosciences de Provence (IM2NP), Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Institut FRESNEL (FRESNEL), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Toliopoulos, D, Khoury, M, Bouabdellaoui, M, Granchi, N, Claude, J, Benali, A, Berbezier, I, Hannani, D, Ronda, A, Wenger, J, Bollani, M, Gurioli, M, Sanguinetti, S, Intonti, F, Abbarchi, M, Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Optics Express
Optics Express, Optical Society of America-OSA Publishing, 2020, 28 (25), pp.37734. ⟨10.1364/OE.409001⟩
Optics express (2020). doi:10.1364/OE.409001
info:cnr-pdr/source/autori:D. Toliopoulos,1,2 M. Khoury,1 M. Bouabdellaoui,1 N. Granchi,3 J.-B. Claude,1,4 A. Benali,1 I. Berbezier,1 D. Hannani,1 A. Ronda,1 J. Wenger,4 M. Bollani,5 M. Gurioli,1 S. Sanguinetti,2,5 F. Intonti,3 and M. Abbarchi1/titolo:Fabrication of spectrally sharp Si-based dielectric resonators: Combining etaloning with Mie resonances/doi:10.1364%2FOE.409001/rivista:Optics express/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume
Optics Express, 2020, 28 (25), pp.37734. ⟨10.1364/OE.409001⟩
ISSN: 1094-4087
DOI: 10.1364/OE.409001⟩
Popis: We use low-resolution optical lithography joined with solid state dewetting of crystalline, ultra-thin silicon on insulator (c-UT-SOI) to form monocrystalline, atomically smooth, silicon-based Mie resonators in well-controlled large periodic arrays. The dewetted islands have a typical size in the 100 nm range, about one order of magnitude smaller than the etching resolution. Exploiting a 2 µm thick SiO2 layer separating the islands and the underlying bulk silicon wafer, we combine the resonant modes of the antennas with the etalon effect. This approach sets the resonance spectral position and improves the structural colorization and the contrast between scattering maxima and minima of individual resonant antennas. Our results demonstrate that templated dewetting enables the formation of defect-free, faceted islands that are much smaller than the nominal etching resolution and that an appropriate engineering of the substrate improves their scattering properties. These results are relevant to applications in spectral filtering, structural color and beam steering with all-dielectric photonic devices.
Databáze: OpenAIRE