  Ultra-thin optical structures, known as metasurfaces, have shown promising
light controlling capability at the nanoscale. In this paper, we study their
particular case, a periodic array of high-refractive-index nanoparticles with
electric and magnetic resonances. The main result of the work is a numerical
demonstration that the lattice effect in the periodic arrangement of
nanoparticles changes the resonance position even if the resonances are above
the diffraction wavelength (Rayleigh anomaly). We show that the disk resonance
changes can be achieved not only by varying periods of the array under normal
light incidence but also by changing the incident angle.
