Experimental demonstration of high TM reflectivity in GaAs based GIRO-gratings in the wavelength region of 9-11 /spl mu/m

In this paper we present the first experimental result of the GIRO-principle (giant reflectivity to 0 order) showing a semiconductor-air diffraction grating with high TM reflectivity and low TE reflectivity under normal incidence, as predicted by theory.