Antireflection High-Index Metasurfaces Combining Mie and Fabry-Pérot Resonances

Andrea Cordaro, Jorik Van De Groep, Søren Raza, Emanuele Francesco Pecora, Francesco Priolo, Mark L. Brongersma*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Minimizing reflection losses is required for the efficient operation of a wide range of optical components. Antireflection coatings supporting Fabry-Pérot resonances are commonly used to solve this problem and can be applied on an industrial scale. Recent work has shown that reflections can also be reduced by placing an array of high-index nanostructures on a surface. In such coatings, antireflection is achieved by tailoring the scattering by optical Mie resonances. Here, we design and fabricate Si metasurfaces that combine both Fabry-Pérot and Mie resonances in a single metasurface to realize a multiresonant broadband antireflection response. We optically characterize the metasurfaces demonstrating 4.1% AM1.5-averaged reflectance across the visible spectrum (425-900 nm). Our metasurface design strategy is generally applicable to different materials and frequency ranges, making our approach relevant for a broad variety of applications.

Original languageEnglish
JournalACS Photonics
Volume6
Issue number2
Pages (from-to)453-459
Number of pages7
ISSN2330-4022
DOIs
Publication statusPublished - 2019

Keywords

  • Anti-reflection coating (ARC)
  • Effective medium
  • Fabry-Pérot resonances
  • Metasurface
  • Mie resonators

Cite this

Cordaro, A., Van De Groep, J., Raza, S., Pecora, E. F., Priolo, F., & Brongersma, M. L. (2019). Antireflection High-Index Metasurfaces Combining Mie and Fabry-Pérot Resonances. ACS Photonics, 6(2), 453-459. https://doi.org/10.1021/acsphotonics.8b01406
Cordaro, Andrea ; Van De Groep, Jorik ; Raza, Søren ; Pecora, Emanuele Francesco ; Priolo, Francesco ; Brongersma, Mark L. / Antireflection High-Index Metasurfaces Combining Mie and Fabry-Pérot Resonances. In: ACS Photonics. 2019 ; Vol. 6, No. 2. pp. 453-459.
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abstract = "Minimizing reflection losses is required for the efficient operation of a wide range of optical components. Antireflection coatings supporting Fabry-P{\'e}rot resonances are commonly used to solve this problem and can be applied on an industrial scale. Recent work has shown that reflections can also be reduced by placing an array of high-index nanostructures on a surface. In such coatings, antireflection is achieved by tailoring the scattering by optical Mie resonances. Here, we design and fabricate Si metasurfaces that combine both Fabry-P{\'e}rot and Mie resonances in a single metasurface to realize a multiresonant broadband antireflection response. We optically characterize the metasurfaces demonstrating 4.1{\%} AM1.5-averaged reflectance across the visible spectrum (425-900 nm). Our metasurface design strategy is generally applicable to different materials and frequency ranges, making our approach relevant for a broad variety of applications.",
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Cordaro, A, Van De Groep, J, Raza, S, Pecora, EF, Priolo, F & Brongersma, ML 2019, 'Antireflection High-Index Metasurfaces Combining Mie and Fabry-Pérot Resonances', ACS Photonics, vol. 6, no. 2, pp. 453-459. https://doi.org/10.1021/acsphotonics.8b01406

Antireflection High-Index Metasurfaces Combining Mie and Fabry-Pérot Resonances. / Cordaro, Andrea; Van De Groep, Jorik; Raza, Søren; Pecora, Emanuele Francesco; Priolo, Francesco; Brongersma, Mark L.

In: ACS Photonics, Vol. 6, No. 2, 2019, p. 453-459.

Research output: Contribution to journalJournal articleResearchpeer-review

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T1 - Antireflection High-Index Metasurfaces Combining Mie and Fabry-Pérot Resonances

AU - Cordaro, Andrea

AU - Van De Groep, Jorik

AU - Raza, Søren

AU - Pecora, Emanuele Francesco

AU - Priolo, Francesco

AU - Brongersma, Mark L.

PY - 2019

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AB - Minimizing reflection losses is required for the efficient operation of a wide range of optical components. Antireflection coatings supporting Fabry-Pérot resonances are commonly used to solve this problem and can be applied on an industrial scale. Recent work has shown that reflections can also be reduced by placing an array of high-index nanostructures on a surface. In such coatings, antireflection is achieved by tailoring the scattering by optical Mie resonances. Here, we design and fabricate Si metasurfaces that combine both Fabry-Pérot and Mie resonances in a single metasurface to realize a multiresonant broadband antireflection response. We optically characterize the metasurfaces demonstrating 4.1% AM1.5-averaged reflectance across the visible spectrum (425-900 nm). Our metasurface design strategy is generally applicable to different materials and frequency ranges, making our approach relevant for a broad variety of applications.

KW - Anti-reflection coating (ARC)

KW - Effective medium

KW - Fabry-Pérot resonances

KW - Metasurface

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