Title

Spectroscopic Ellipsometry On Metal And Metal-Oxide Multilayer Hybrid Plasmonic Nanostructures

Abstract

The effective medium approximation is used to determine the optical constants of novel silver (Ag)/indium-tin oxide (ITO) multilayer nanopillar structures within the 300-800 nm wavelength range. The structures are modeled as inclusions in air with the pillar volume fraction at 42.4%, agreeing with SEM images of the sample. The simulated reflection intensity of the nanopillars is much less than that of the planar reference sample and is a result of the small difference between the refractive index of the top effective medium layer and that of air. Furthermore, the minimum in the reflection at around 450 nm in the nanostructured sample is evidence of surface plasmon enhancement, indicating suitability for plasmonic applications. The simulated Brewster angle decreases in the pillar region, which is an indication of smaller effective refractive index. © 2013 Optical Society of America.

Publication Date

10-1-2013

Publication Title

Optics Letters

Volume

38

Issue

19

Number of Pages

3969-3972

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OL.38.003969

Socpus ID

84885026691 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84885026691

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