Plasmonic Physics of 2D Crystalline Materials

Plasmonic Physics of 2D Crystalline Materials

Collective modes of doped two-dimensional crystalline materials, namely graphene, MoS2 and phosphorene, both monolayer and bilayer structures, are explored using the density functional theory simulations together with the random phase approximation. The many-body dielectric functions of the materials are calculated using an ab initio based model involving material-realistic physical properties....

Plasmonic materials for energy: From physics to applications

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2D quasiperiodic plasmonic crystals

Nanophotonic structures with irregular symmetry, such as quasiperiodic plasmonic crystals, have gained an increasing amount of attention, in particular as potential candidates to enhance the absorption of solar cells in an angular insensitive fashion. To examine the photonic bandstructure of such systems that determines their optical properties, it is necessary to measure and model normal and o...

Electronic Structure of Crystalline Materials

Searching for better plasmonic materials

Plasmonics is a research area merging the fields of optics and nanoelectronics by confining light with relatively large free-space wavelength to the nanometer scale thereby enabling a family of novel devices. Current plasmonic devices at telecommunication and optical frequencies face significant challenges due to losses encountered in the constituent plasmonic materials. These large losses seri...