By Topic

Sensitivity improvement of the surface plasmon resonance optical sensor by using a gold-silver transducing layer

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Wu, S.Y. ; Dept. of Phys. & Mater. Sci., City Univ. of Hong Kong, Kowloon, China ; Ho, H.P.

It is well established that the surface plasmon resonance (SPR) optical sensor based on a metal-dielectric configuration can provide high sensitivity for many applications such as chemical and biological sensing. In fact the gold-dielectric configuration is most commonly used in the SPR sensor because of the fact that the thin gold layer can provide stable performance and good chemical resistance. In this paper, the characteristics of spectral SPR sensors that use composite silver/gold films for the transducing layer have been studied by using Fresnel formulas. Our simulations indicate that the optimal layer configuration for spectral SPR sensors should be gold(2 nm)-silver(48 nm)-dielectric for achieving best sensitivity.

Published in:

Electron Devices Meeting, 2002. Proceedings. 2002 IEEE Hong Kong

Date of Conference:

2002