mirage

Sensitivity enhancement in grating coupled surface plasmon resonance by azimuthal control

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Sensitivity enhancement in grating coupled surface plasmon resonance by azimuthal control

Show full item record

Title: Sensitivity enhancement in grating coupled surface plasmon resonance by azimuthal control
Author: Romanato, Filippo; Lee, Kwang Hong; Kang, Husen Kartasasmita; Ruffato, Gianluca; Wong, Chee Cheong
Copyright year: 2009
Abstract: We present a method for improving the sensing capability of grating coupled surface plasmon resonance (GCSPR) sensors. The grating is rotated azimuthally (φ) until the excitation of double surface plasmon polaritions (SPPs) by a single wavelength is possible. Close to this condition, further tuning of the incident wavelength will merge the double SPPs into a multi-SPP resonance which is angularly broad but spectrally sharp. This is the condition where the momentum vector of the propagating SPP is perpendicular to the incident light momentum. We demonstrate this sensitivity enhancement on a Au grating surface using a dodecanethiol (C12) self-assembled monolayer (SAM). Using this method, a shift in resonance angle as large as 3° can be observed. The simulated sensitivity of this method shows that a sensitivity up to 800°/RIU is achievable, which is one order of magnitude greater than that in a conventional fixed grating (φ = 0°) as well as the prism-coupled Kretschmann configuration.
Subject: DRNTU::Engineering::Materials::Plasma treatment.
Type: Journal Article
Series/ Journal Title: Optics express
School: School of Materials Science and Engineering
Version: Accepted version

Files in this item

Files Size Format View
Sensitivity enh ... e by azimuthal control.pdf 238.5Kb PDF View/Open
   

DOI Query

- Get published version (via Digital Object Identifier)
   

This item appears in the following Collection(s)

Show full item record

Statistics

Total views

All Items Views
Sensitivity enhancement in grating coupled surface plasmon resonance by azimuthal control 493

Total downloads

All Bitstreams Views
Sensitivity enhancement in grating coupled surface plasmon resonance by azimuthal control.pdf 401

Top country downloads

Country Code Views
United States of America 136
China 60
Singapore 38
Iran 20
Japan 18

Top city downloads

city Views
Mountain View 77
Singapore 36
Beijing 28
Tehran 14
Redmond 9

Downloads / month

  2014-05 2014-06 2014-07 total
Sensitivity enhancement in grating coupled surface plasmon resonance by azimuthal control.pdf 0 0 11 11