We designed a metasurface made of a monolayer of spherical nanoparticles embedded in a dielectric slab, which exhibits transmission properties independent of the incidence angle. Adjusting the electromagnetic coupling between high-index dielectric and hybrid core-shell nanoparticles enables the metasurface to operate in low-pass, bandpass, as well as band-stop regimes in the visible and near-infrared spectral ranges. We demonstrate how symmetric properties of spherical nanoparticles determine the response of the metasurface, resulting in a spectral filter with a wide angular acceptance range. We study transmission characteristics of the metasurface, such as frequency selectivity, the slope of filtering at cutoff frequencies, and the robustness of the metasurface against experimental variations in geometrical parameters. Our analyses show that the proposed approach can be used to design angular-independent spectral filters with the same material platform and approach to operate in different regimes and spectral ranges.
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7 December 2019
Research Article|
December 02 2019
Nanoparticle-based metasurfaces for angular independent spectral filtering applications
Special Collection:
Dielectric Nanoresonators and Metamaterials
Francesco Lotti
;
Francesco Lotti
a)
1
Department of Physics, King’s College London
, Strand, London WC2R 2LS, United Kingdom
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Ali Mirzaei;
Ali Mirzaei
2
Nonlinear Physics Centre, Research School of Physics and Engineering Australian National University
, Canberra ACT 2601, Australia
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Andrey E. Miroshnichenko
;
Andrey E. Miroshnichenko
3
School of Engineering and Information Technology, University of New South Wales
, Canberra ACT 2600, Australia
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Anatoly V. Zayats
Anatoly V. Zayats
1
Department of Physics, King’s College London
, Strand, London WC2R 2LS, United Kingdom
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a)
Electronic mail: francesco.lotti@kcl.ac.uk
Note: This paper is part of the Special Topic on Dielectric Nanoresonators and Metamaterials.
J. Appl. Phys. 126, 213101 (2019)
Article history
Received:
May 02 2019
Accepted:
November 11 2019
Citation
Francesco Lotti, Ali Mirzaei, Andrey E. Miroshnichenko, Anatoly V. Zayats; Nanoparticle-based metasurfaces for angular independent spectral filtering applications. J. Appl. Phys. 7 December 2019; 126 (21): 213101. https://doi.org/10.1063/1.5108578
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