Negative refractive index 8 INDICE DE REFRACCION NEGATIVO 7 METAMATERIALES 7 METAMATERIALS 7 NEGATIVE REFRACTIVE INDEX 7 PLASMONICA 7 PLASMONICS 7 POLARITONES SUPERFICIALES 7 SURFACE POLARITONS 7 Metamaterials 6 Refractive index 6 Diffraction 4 Electromagnetic wave polarization 4 Grating 4 Phonons 4 Photons 4 Plasmons 4 Quantum theory 4 Solids 4 Surface plasmon polaritons 4 Surface polaritons 4 POLARIZACION 3 POLARIZATION 3 ATR 2 Aperiodic photonic structures 2 Aperiodic structure 2 Attenuated total reflections 2 Constitutive parameters 2 Dispersion (waves) 2 Dispersion curves 2