SPR biosensor using gold nanoantenna arrays in Kretchmann configuration

Author

Yi-Hsun Chen ; Min-Hsiung Shih ; Kuo-Ping Chen

Author_Institution

Inst. of Lighting & Energy Photonic, Nat. Chiao-Tung Univ., Hsinchu, Taiwan

fYear

2013

fDate

6-9 Oct. 2013

Firstpage

88

Lastpage

90

Abstract

Gold nanoantenna arrays with Kretchmann prism coupling configuration are designed as high sensitivity bio-sensor. In order to achieve higher near-field enhancement, total internal reflection (TIR) is used to transfer the input energy into localized surface plasmon resonance (LSPR). Base on this geometry, multiple coupling modes are observed and the magnitude of electric field shows 6.9 time higher than the traditional gold film sensor.

Keywords

antenna arrays; biological techniques; biosensors; electric fields; light reflection; nanostructured materials; optical prisms; surface plasmon resonance; Au; Kretchmann prism coupling configuration; SPR biosensor; electric field magnitude; geometry; gold nanoantenna arrays design; high biosensor sensitivity; high near-field enhancement; input energy transfer; multiple coupling mode; surface plasmon resonance localization; total internal reflection; traditional gold film sensor; Gold; Sensitivity; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology Materials and Devices Conference (NMDC), 2013 IEEE 8th

Conference_Location

Tainan

Print_ISBN

978-1-4799-3386-0

Type

conf

DOI

10.1109/NMDC.2013.6707463

Filename

6707463