Departmental Papers (ESE)


We theoretically explore the possibility of reducing propagation loss in a metal-insulator-metal (MIM) waveguide, using mode combinations to achieve wall-avoiding field distributions along a certain propagation length. We present analytical results for several waveguides showing notable loss reduction, and we discuss the trade-offs between low loss and high confinement present in this technique.

Document Type

Journal Article

Date of this Version



Rodríguez-Fortuño, F. J. and Engheta, N. (2012). Avoiding metallic walls: Use of modal superposition in plasmonic waveguides to reduce propagation loss. Physical Review B, 85(11), 115421. doi: 10.1103/PhysRevB.85.115421

©2012 American Physical Society



Date Posted: 28 March 2012

This document has been peer reviewed.