Numerical investigations on sensing characteristics of waveguide-based surface plasmon resonance sensors

Jun Shibayama; Shota Takagi; Tomohide Yamazaki; Junji Yamauchi; Hisamatsu Nakano

doi:10.1117/12.652009

5 December 2005 Numerical investigations on sensing characteristics of waveguide-based surface plasmon resonance sensors

Jun Shibayama, Shota Takagi, Tomohide Yamazaki, Junji Yamauchi, Hisamatsu Nakano

Author Affiliations +

Proceedings Volume 6050, Optomechatronic Micro/Nano Devices and Components; 60500M (2005) https://doi.org/10.1117/12.652009
Event: Optomechatronic Technologies 2005, 2005, Sapporo, Japan

Abstract

Waveguide-based surface plasmon resonance (SPR) sensors are analyzed using both 2-D and 3-D beam-propagation methods and the sensing characteristics are discussed for aqueous environment. First, the effect of the metal thickness on the sensing characteristics is investigated. It is shown that the maximum absorption wavelength shifts to a longer wavelength, as the metal becomes thick. Next consideration is given to the SPR sensor with the adsorbed layer placed on the metal layer. The change in the adsorbed layer thickness also leads to the shift of the maximum absorption wavelength. The reason for the wavelength shift is explained in detail using the eigenmode analysis. The configuration parameters are determined for the sensor operation around a wavelength of 0.6 μm. As a result, the sensor shows the absorption wavelength shift from 0.594 to 0.602 μm, when the refractive index of an analyte is increased from 1.330 to 1.334. Finally, the numerical results of the 2-D model are compared with those of the 3-D model.

Citation Download Citation

Jun Shibayama, Shota Takagi, Tomohide Yamazaki, Junji Yamauchi, and Hisamatsu Nakano "Numerical investigations on sensing characteristics of waveguide-based surface plasmon resonance sensors", Proc. SPIE 6050, Optomechatronic Micro/Nano Devices and Components, 60500M (5 December 2005); https://doi.org/10.1117/12.652009

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available