Analytic description of channel plasmon polaritons

Using the effective-index approximation along with the explicit expression for the propagation constant of gap surface plasmons established recently [Opt. Express16, 2676 (2008)], we derive closed-form expressions for channel plasmon polariton (CPP) modes supported by V grooves cut into metal. The C...

Full description

Saved in:
Bibliographic Details
Published inOptics letters Vol. 34; no. 13; p. 2039
Main Authors Bozhevolnyi, Sergey I, Nerkararyan, Khachatur V
Format Journal Article
LanguageEnglish
Published United States 01.07.2009
Online AccessGet more information

Cover

More Information
Summary:Using the effective-index approximation along with the explicit expression for the propagation constant of gap surface plasmons established recently [Opt. Express16, 2676 (2008)], we derive closed-form expressions for channel plasmon polariton (CPP) modes supported by V grooves cut into metal. The CPP field distributions and mode characteristics are calculated for the air-gold configuration. The results obtained are found to be in good agreement with the results of previous numerical simulations.
ISSN:0146-9592
DOI:10.1364/OL.34.002039