A Novel LRSPP Based Refractive Index Sensor

Author

Liu, Fang ; Rao, Yi ; Huang, Yidong ; Ohnishi, Dai ; Zhang, Wei ; Peng, Jiangde

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing

fYear

2006

fDate

16-18 Oct. 2006

Firstpage

103

Lastpage

105

Abstract

A novel three-layer sensor based on LRSPP is proposed for detecting the refractive index changes, especially in the biosensor field. We find that the loss and electromagnetic field size of LRSPP are sensitive to the refractive index of detection substance. By measuring the output power or (and) field size of LRSPP, we can detect the refractive index changes of detection substance. LRSPP field size is a new parameter here for refractive index change detection and may lead to a much higher sensitivity compared to current SPP biosensors.

Keywords

biosensors; electromagnetic fields; optical sensors; refractive index measurement; surface electromagnetic waves; surface plasmons; LRSPP based refractive index sensor; biosensor field; detection substance; electromagnetic field; long rang surface plasmon polariton; three-layer sensor; Biosensors; Dielectric substrates; Electromagnetic fields; Optical films; Optical sensors; Optical surface waves; Power generation; Propagation constant; Propagation losses; Refractive index;

fLanguage

English

Publisher

ieee

Conference_Titel

Biophotonics, Nanophotonics and Metamaterials, 2006. Metamaterials 2006. International Symposium on

Conference_Location

Hangzhou

Print_ISBN

0-7803-9773-8

Electronic_ISBN

0-7803-9774-6

Type

conf

DOI

10.1109/METAMAT.2006.335009

Filename

4134748