Zapata Rodríguez, Carlos Javier, Miret, Juan Jose, Sorní Laserna, Josep, Vuković, Slobodan
Propagation of Dyakonon Wave-Packets at the Boundary of Metallodielectric Lattices
IEEE Journal of Selected Topics in Quantum Electronics. 2013, 19(3): 4601408. doi:10.1109/JSTQE.2012.2230153
URI: http://hdl.handle.net/10045/40357
DOI: 10.1109/JSTQE.2012.2230153
ISSN: 1077-260X (Print)
Abstract: 
We rigorously analyze the propagation of localized surface waves that takes place at the boundary between a semi-infinite layered metal-dielectric (MD) nanostructure cut normally to the layers and a isotropic medium. It is demonstrated that Dyakonov-like surface waves (also coined dyakonons) with hybrid polarization may propagate in a wide angular range. As a consequence, dyakonon-based wave-packets (DWPs) may feature sub-wavelength beamwidths. Due to the hyperbolic-dispersion regime in plasmonic crystals, supported DWPs are still in the canalization regime. The apparent quadratic beam spreading, however, is driven by dissipation effects in metal.
Keywords:Birefringence, Electromagnetic wave propagation, Surface plasmons
IEEE
info:eu-repo/semantics/article