Diffraction gratings 10 Compound grating 6 Compound gratings 4 Diffraction 4 Electromagnetic fields 4 Light polarization 4 Magnetic fields 4 Mathematical models 4 Metallic compounds 4 Photonic crystals 4 Resonance 4 Resonances 4 Resonant effects 4 Analytical approach 2 Analytical design 2 Analytical model 2 Analytical modeling 2 Antennas 2 Approximate model 2 Cavity resonators 2 Compound structures 2 Diffraction grating 2 Double Period 2 Dual period gratings 2 Electric field effects 2 Electromagnetic wave transmission 2 Electromagnetic waves 2 Enhanced transmission 2 Experimental approaches 2 Fabry-Perot resonances 2