Title :
Coupling of plasmonic gap waveguides with directive antennas
Author :
Solis, D.M. ; Taboada, J.M. ; Obelleiro, F. ; Landesa, L. ; Rodriguez, J.L. ; Rubinos, J.O.
Author_Institution :
Dept. Teor. do Sinal e Comunicacions, Univ. de Vigo, Vigo, Spain
Abstract :
Optical nanocouplers matching a fiber microwaveguide to a plasmonic nanowaveguide are essential components for practical applications of nanophotonic systems. In this paper, an efficient nanocoupler operating at optical frequencies is designed that uses a directive nanoantenna to maximize the coupling efficiency (CE). Despite the reduced size of the nanoantenna in comparison with the impinging fiber spot size, we have shown that a good efficiency can be achieved, improving the CE by a factor of 10 with respect to the nondirective antenna nanocouplers.
Keywords :
electromagnetic coupling; metamaterial antennas; optical couplers; optical waveguides; plasmonics; waveguide antennas; coupling efficiency; directive nanoantenna; fiber microwaveguide; nanophotonic system; nondirective antenna nanocouplers; optical nanocouplers matching; plasmonic gap waveguides coupling; plasmonic nanowaveguide; Directive antennas; Optical diffraction; Optical fiber communication; Optical fibers; Plasmons; optical nanoantennas; optical waveguides; plasmonics;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6901821