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Proceedings Paper

Hybrid glass and sol-gel integrated optical waveguides for absorption-based biosensing
Author(s): Ismail E. Araci; Nasuhi Yurt; Seppo Honkanen; Sergio B. Mendez; Nasser Peyghambarian
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Paper Abstract

A novel integrated optical planar waveguide platform for absorption-based biosensing is demonstrated. The platform integrates surface ion-exchanged channel waveguides with one-step UV patterned sol-gel structures to define the probing regions. Cytochrome c protein was utilized to characterize the device performance. Spectroscopically specific attenuation of approximately 2 dB in the guided signal occurred at 532nm for 1.4 cm long probing region. The estimated level of detection is about 1 pmol/cm2 of surface adsorbed cytochrome c. The proposed structure enables environmentally stable, compact, and inexpensive sensing devices that can be applied to a wide range of biological and chemical species.

Paper Details

Date Published: 10 November 2005
PDF: 6 pages
Proc. SPIE 6004, Fiber Optic Sensor Technology and Applications IV, 60040J (10 November 2005); doi: 10.1117/12.628880
Show Author Affiliations
Ismail E. Araci, Optical Sciences Ctr./Univ. of Arizona (United States)
Nasuhi Yurt, Optical Sciences Ctr./Univ. of Arizona (United States)
Seppo Honkanen, Optical Sciences Ctr./Univ. of Arizona (United States)
Sergio B. Mendez, Optical Sciences Ctr./Univ. of Arizona (United States)
Univ. of Arizona (United States)
Nasser Peyghambarian, Optical Sciences Ctr./Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 6004:
Fiber Optic Sensor Technology and Applications IV
Michael A. Marcus; Brian Culshaw; John P. Dakin, Editor(s)

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