Engineering strong magnetic dipole resonance in all- dielectric metasurfaces

We have investigated the all-dielectric metasurface comprising the square array of nanodisks periodically arranged in two dimensions. The studies examined by performing the simulations determine the origin of the electric and magnetic dipole resonances induced by the structure. The underlying physics of the different resonances is elucidated by tuning the diameter, height, and periodicity of the metasurface. The strong magnetic dipole resonant feature with high scattering efficiency is scrutinized by engineering the structural parameters optimized at the desired resonance wavelength for the metasurface. The studies are crucial to illustrate such metasurfaces with enhanced magnetic behavior for various magneto-optical studies.