Collective Lattice Resonances in All-Dielectric Nanostructures under Oblique Incidence

• DOI: 10.3390/photonics7020024
• Publication Date: 2020-03-31T14:29:38Z
• Authors: Anton D. Utyushev; Vadim I. Zakomirnyi; Alexander E. Ershov; Valeriy S. Gerasimov; Sergey V. Karpov; Ilia L. Rasskazov
• Keywords: Mie resonance; collective lattice resonance; nanoparticle; 0103 physical sciences; Applied optics. Photonics; all-dielectric nanophotonics; 01 natural sciences; TA1501-1820

Collective lattice resonances (CLRs) emerging under oblique incidence in 2D finite-size arrays of Si nanospheres have been studied with the coupled dipole model. We show that hybridization between Mie localized on a single nanoparticle and angle-dependent grating Wood–Rayleigh anomalies allows for efficient tuning CLRs across visible spectrum. Complex nature dielectric particles both electric (ED) magnetic (MD) paves way selective flexible either ED or MD CLR by an appropriate variation angle incidence. The importance effects, which are especially pronounced high diffraction orders has also discussed.