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.
Department of Electrical and Computer Engineering, University of Alabama in Huntsville, Huntsville, AL 35899, USA. jguo@eng.uah.edu
Junpeng
J
Guo
Ronen
R
Adato
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