High Resolution NIR TFBG-Assisted Biochemical Sensors

Author

Marquez-Cruz, Violeta ; Albert, Jacques

Author_Institution

Dept. of Electron., Carleton Univ., Ottawa, ON, Canada

Volume

33

Issue

16

fYear

2015

fDate

Aug.15, 15 2015

Firstpage

3363

Lastpage

3373

Abstract

Tilted fiber Bragg gratings (TFBGs) have shown to be a suitable tool for exciting surface plasmon waves in a comparable manner as in typical attenuated total reflection Kretschmann configurations. In this paper, we present a comparative analysis of the characteristics of prism and grating configurations for generating surface plasmon resonance (SPR) for 800 and 1550 nm wavelengths. Results indicate that longer wavelength SPR may present advantages in sensing. Recent label-free biochemical sensing results using NIR TFBGs with and without SPR coatings demonstrate limits of detection ranging from the nM to the pM range without the need for thermal stabilization.

Keywords

Bragg gratings; biosensors; chemical sensors; fibre optic sensors; surface plasmon resonance; SPR coatings; grating configurations; high-resolution NIR TFBG-assisted biochemical sensors; prism; surface plasmon resonance; surface plasmon waves; tilted fiber Bragg gratings; wavelength 1550 nm; wavelength 800 nm; Films; Metals; Optical fiber sensors; Optical fibers; Refractive index; Sensitivity; SPR sensors; Surface plasmon resonance; biochemical sensors; optical fiber sensors; tilted fiber Bragg gratings;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2015.2431912

Filename

7105833