Enhancement of evanescent field of metamaterials-core slab waveguide using metamaterials-buffer layer

Cherl-Hee Lee; Jonghun Lee

doi:10.1117/1.OE.51.8.084601

6 August 2012 Enhancement of evanescent field of metamaterials-core slab waveguide using metamaterials-buffer layer

Cherl-Hee Lee, Jonghun Lee

Author Affiliations +

Funded by: DGIST R&D Program of the Ministry of Education, Science and Technology of Korea

Optical Engineering, Vol. 51, Issue 8, 084601 (August 2012). https://doi.org/10.1117/1.OE.51.8.084601

Abstract

A metamaterials (MTM)-core slab waveguide overlaid with a MTM buffer layer was used to enhance an evanescent field. The guided modes were graphically obtained by a new dispersion equation of the four-layered MTM-core slab waveguide modeled to have four layers, including an air layer, buffer layer, slab waveguide layer, and substrate layer. With the tuning of the refractive index and width of the MTM-buffer layer, abuffer layer with one-tenth of the core-layer width was obtained together with the refractive index of 1.7, making the evanescent field increase up to 1.8 times.

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Cherl-Hee Lee and Jonghun Lee "Enhancement of evanescent field of metamaterials-core slab waveguide using metamaterials-buffer layer," Optical Engineering 51(8), 084601 (6 August 2012). https://doi.org/10.1117/1.OE.51.8.084601

Published: 6 August 2012

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