https://123dok.net/document/qmjr1d5q-en-fr-collective-plasmonic-excitations-in-two-dimensional-metamaterials-based-on-near-field-coupled-metallic-nanoparticles-plasmons-collectifs-dans-des-metamateriaux-bi-dimensionnels-bases-sur-des-nanoparticules-metalliques-couplees-en-champ-proche.html