A novel cross-reference dual-window SPR sensor based on single silica optical waveguide

Author

Lin, C.-W. ; Lee, C.L. ; Wang, W.S. ; Lee, C.K.

Author_Institution

Graduate Inst. of Biomed. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2004

fDate

14-17 Dec. 2004

Firstpage

223

Lastpage

224

Abstract

We reported the design and development of a dual-window SPR sensor, which is based on Ge-doped silica waveguide structure. By employing the WDM concept, a single waveguide can detect two or more kinds of samples in different ranges of wavelengths. The silica waveguides with low refractive index are good for lower SPR spectrum range in liquid. The two channels silica waveguide SPR sensors had been successfully fabricated and tested with two solutions, whose refractive indices are 1.361 and 1.418, respectively. The resultant spectrum has two resonant peaks at 626.41 nm and 751.8 nm, respectively.

Keywords

biosensors; elemental semiconductors; germanium; integrated optics; optical fabrication; optical materials; optical waveguides; refractive index; silicon compounds; surface plasmon resonance; wavelength division multiplexing; 626.41 nm; 751.8 nm; Ge-doped silica waveguide structure; SPR sensor fabrication; SPR spectrum; SiO₂:Ge; WDM; biosensors; dual-window SPR sensor; refractive index; sample detection; single silica optical waveguide; Liquid waveguides; Optical refraction; Optical sensors; Optical variables control; Optical waveguides; Refractive index; Resonance; Silicon compounds; Testing; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Biophotonics, 2004. APBP 2004. The Second Asian and Pacific Rim Symposium on

Print_ISBN

0-7803-8676-0

Type

conf

DOI

10.1109/APBP.2004.1412362

Filename

1412362