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Propagation of surface plasmons on plasmonic Bragg gratings
A. J. Chaves, N. M. R. Peres
We use coupled-mode theory to describe the scattering of a surface-plasmon polariton (SPP) from a square wave grating (Bragg grating) of finite extension written on the surface of…
Plasmons in bias-induced topological phase transition in black phosphorus
D. J. P. de Sousa, L. S. R. Cavalcante, Andrey Chaves +2
We investigate the plasmons in bilayer black phosphorus (BP) with bias-driven formation of Dirac cones, by developing an effective two-band Hamiltonian that captures this electroni…
Excitons in hexagonal boron nitride single-layer: a new platform for polaritonics in the ultraviolet
F. Ferreira, A. J. Chaves, N. M. R. Peres +1
The electronic and optical properties of 2D hexagonal boron nitride are studied using first principle calculations. GW and BSE methods are employed in order to predict with better…
Momentum-space indirect interlayer excitons in transition metal dichalcogenide van der Waals heterostructures
Jens Kunstmann, Fabian Mooshammer, Philipp Nagler +9
Monolayers of transition metal dichalcogenides (TMDCs) feature exceptional optical properties that are dominated by excitons, tightly bound electron-hole pairs. Forming van der Waa…