Control of 2D plasmon-polariton mode with dielectric nanolayers.
We introduce two nanoscale thickness dielectric layers on the top and bottom sides of a finite width and finite thickness metal microstrip and have calculated the fundamental symmetric plasmon-polariton mode of the 2D metal-dielectric layer waveguide. The dielectric nanolayers provide an additional degree of freedom to control the plasmon-polariton mode. When the dielectric constant of the nanolayers is smaller than that of the cladding dielectric, the travel range of the fundamental symmetric plasmon-polariton mode is extended with the trade-off of the mode confinement. The figure of merit of the mode increases as the travel range extends.
Guo
Junpeng
J
Department of Electrical and Computer Engineering, University of Alabama in Huntsville, Huntsville, AL 35899, USA. jguo@eng.uah.edu
Adato
Ronen
R
D003198:Computer Simulation; D017097:Electric Impedance; D008027:Light; D008567:Membranes, Artificial; D008956:Models, Chemical; D049329:Nanostructures / Q000737:chemistry*; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000379:methods*
D008567:Membranes, Artificial