2011/04/27 by Dmitry N. Chigrin, D. N. Chigrin, Christian Kremers +3 · 30 citations
Engineering · Materials Science · Physics and Astronomy · #Circular dichroism #Light scattering #Metamaterial #Metamaterials and Metasurfaces Applications #Nanoparticle #Nanophotonics #Particle (ecology) #Photonic Crystals and Applications #Planar #Plasmon #Plasmonic and Surface Plasmon Research #Plasmonic nanoparticles #cond-mat.mtrl-sci #physics.optics
paper · pdf · doi:10.1007/s00340-011-4733-7
published in Applied Physics B 105(1), 81-97 (Springer Science+Business Media) · submitted to Appl. Phys. B
arxiv created 2011/04/27 · openalex publication_date 2011/09/08 · arxiv updated 2012/08/22 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We review the basic physics behind light interaction with plasmonic nanoparticles. The theoretical foundations of light scattering on one metallic particle (a plasmonic monomer) and two interacting particles (a plasmonic dimer) are systematically investigated. Expressions for effective particle susceptibility (polarizability) are derived, and applications of these results to plasmonic nanoantennas are outlined. In the long-wavelength limit, the effective macroscopic parameters of an array of plasmonic dimers are calculated. These parameters are attributable to an effective medium corresponding to a dilute arrangement of nanoparticles, i.e., a metamaterial where plasmonic monomers or dimers have the function of "meta-atoms". It is shown that planar dimers consisting of rod-like particles generally possess elliptical dichroism and function as atoms for planar chiral metamaterials. The fabricational simplicity of the proposed rod-dimer geometry can be used in the design of more cost-effective chiral metamaterials in the optical domain.