-
Surface plasmon resonance-enhanced light interaction in an integrated ormocomp nanowire
- Back
Document Title
Surface plasmon resonance-enhanced light interaction in an integrated ormocomp nanowire
Author
Viphavakit C, Boonruang S, Themistos C, Komodromos M, Mohammed WS, Rahman BMA
Name from Authors Collection
Affiliations
City University London; National Science & Technology Development Agency - Thailand; National Electronics & Computer Technology Center (NECTEC); Bangkok University
Type
Article
Source Title
OPTICAL AND QUANTUM ELECTRONICS
ISSN
0306-8919
Year
2016
Volume
48
Issue
5
Page
-
Open Access
hybrid, Green Accepted
Publisher
SPRINGER
DOI
10.1007/s11082-016-0499-9
Format
Abstract
An integrated ormocomp nanowire coated with gold metal layer is proposed and its optical characteristics with the effect of surface plasmon resonance (SPR) are studied. The integrated rib-like nanowire has a trapezoidal shape with sidewall angles of 75 degrees. It is coated with 50 nm gold layer to introduce the SPR and enhance the evanescent field in the sensing region located at the dielectric/metal interface. The possible field modes, the normalized power confinement, and the SPR peak position of the nanowire are studied over the wavelength and the metal thickness by using the full-vectorial H-field FEM in quasi-TM mode. The attenuation coefficient of the nanowire, the SPR peak wavelength, and the wavelength shift is experimentally extracted for three different cladding materials. The redshift of the supermode coupling between the dielectric mode and the anti-symmetric supermode is observed with the higher cladding-index and larger metal thickness. The improvement of the power confinement in the sensing region with the SPR effect is ten times (10x) better than a previous similar study.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
License
CC BY
Rights
Authors
Publication Source
WOS