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Proceedings Paper

Resonating periodic waveguides as ultraresolution sensors in biomedicine
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Paper Abstract

Optical sensor technology based on subwavelength periodic waveguides is applied for tag-free, high-resolution biomedical and chemical detection. Measured resonance wavelength shifts of 6.4 nm for chemically attached Bovine Serum Albumin agree well with theory for a sensor tested in air. Reflection peak efficiencies of 90% are measured, and do not degrade upon biolayer attachment. Phase detection methods are investigated to enhance sensor sensitivity and resolution. Direct measurement of the resonant phase response is reported for the first time using ellipsometric measurement techniques.

Paper Details

Date Published: 8 October 2004
PDF: 6 pages
Proc. SPIE 5515, Nanoengineering: Fabrication, Properties, Optics, and Devices, (8 October 2004); doi: 10.1117/12.560192
Show Author Affiliations
Debra D. Wawro, Advanced Fiber Communications (United States)
Purnomo Priambodo, Univ. of Texas/Arlington (United States)
Robert Magnusson, Univ. of Connecticut (United States)

Published in SPIE Proceedings Vol. 5515:
Nanoengineering: Fabrication, Properties, Optics, and Devices
Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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