Split Ring Resonator Arrays: from Microwave to Optics

We numerically and experimentally investigated the electromagnetic properties of split ring resonator arrays excited under normal and oblique incidence angles and aimed at operating from the microwave to the infrared spectral region. Through fullwave EM analysis, the electromagnetic response is demonstrated in the metamaterial regime (inclusion rather than periodicity effect) responsible for high rejection in the TE and TM modes transmission spectra which are measured via Vectorial Network Analysis (VNA) at microwave and by Fourier transform spectroscopy (FTIR) in optics.