TITLE

Surface plasmon polariton propagation around bends at a metal–dielectric interface

AUTHOR(S)
Hasegawa, K.; Nöckel, J.U.; Deutsch, M.
PUB. DATE
March 2004
SOURCE
Applied Physics Letters;3/15/2004, Vol. 84 Issue 11, p1835
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We analyze theoretically the propagation of surface plasmon polaritons about a metallic corner with a finite bend radius, using a one-dimensional model analogous to the scattering from a finite-depth potential well. We obtain expressions for the energy reflection and transmission coefficients in the short wavelength limit, as well as an upper bound for the transmittance. In certain cases we find that propagation on nonplanar interfaces may result in lower losses than on flat surfaces, contrary to expectation. In addition, we also find that the maximum transmittance depends nonmonotonously on the bend radius, allowing increased transmission with decreasing radius. © 2004 American Institute of Physics.
ACCESSION #
12512707

 

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