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10 February 2009 Optoelectronic integration of silicon photonic wire biosensors
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We review our work developing label-free molecular sensors using silicon nanophotonic waveguides. We show that the high index contrast of these waveguides provides high surface sensitivity and enables compact sensor designs to be realized. We also describe new waveguide circuit geometries that allow photonic wire waveguide sensors to be conveniently arrayed in two dimensions for compatibility with commercial spotting tools, while simultaneously providing long interaction length and improved molecular capture efficiency. These sensor designs are shown to provide a practical route to the development of label-free, microarrayed biochips for multiparameter analysis.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Densmore, S. Janz, D.-X. Xu, M. Vachon, P. Waldron, J. H. Schmid, J. Lapointe, T. Mischki, G. Lopinski, A. Delâge, P. Cheben, and R. Ma "Optoelectronic integration of silicon photonic wire biosensors", Proc. SPIE 7219, Optoelectronic Integrated Circuits XI, 72190M (10 February 2009);

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