Diffraction gratings 14 Refractive index 12 Electromagnetic wave diffraction 10 Electromagnetic wave polarization 10 Dielectric materials 9 Magnetic permeability 9 Electromagnetic wave reflection 8 Electromagnetic wave scattering 8 Permittivity 8 Anisotropy 7 Electromagnetic waves 7 Interfaces (materials) 7 Light polarization 7 Boundary conditions 5 Eigenvalues and eigenfunctions 5 Electromagnetic fields 5 Electromagnetic wave propagation 5 Photons 5 Plasmons 5 Surface plasmon resonance 5 Surface waves 5 Boundary value problems 4 Diffraction 4 Metamaterials 4 Phonons 4 Quantum theory 4 Scattering 4 Tensors 4 Conductive materials 3 Gaussian beams 3