Silicon photonic guided mode resonance filter for evanescent field molecular sensing

J. H. Schmid; W. Sinclair; S. Janz; J. Lapointe; D. Poitras; T. Mischki; T. Mischki; G. Lopinski; G. Lopinski; P. Waldron; P. Cheben; A. Delâge; A. Densmore; D.-X. Xu

doi:10.1364/IPNRA.2009.IWB3

Advances in Optical Sciences Congress
OSA Technical Digest (CD) (Optica Publishing Group, 2009),
paper IWB3
•https://doi.org/10.1364/IPNRA.2009.IWB3

Silicon photonic guided mode resonance filter for evanescent field molecular sensing

J. H. Schmid, W. Sinclair, S. Janz, J. Lapointe, D. Poitras, T. Mischki, G. Lopinski, P. Waldron, P. Cheben, A. Delâge, A. Densmore, and D.-X. Xu

Integrated Photonics and Nanophotonics Research and Applications 2009

Honolulu, Hawaii United States
12–17 July 2009
ISBN: 978-1-55752-873-5

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Resonator Circuits and their Applications (IWB)

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J. H. Schmid, W. Sinclair, S. Janz, J. Lapointe, D. Poitras, T. Mischki, G. Lopinski, P. Waldron, P. Cheben, A. Delâge, A. Densmore, and D. -. Xu, "Silicon photonic guided mode resonance filter for evanescent field molecular sensing," in Advances in Optical Sciences Congress, OSA Technical Digest (CD) (Optica Publishing Group, 2009), paper IWB3.

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Abstract

We present experimental and theoretical results of label-free molecular sensing with the TM mode of a 0.22 µm thick silicon slab waveguide used in a guided mode resonance configuration. Due to the strong overlap of the evanescent field of the waveguide mode with a molecular layer attached to the surface, these sensors exhibit high sensitivity, while their fabrication and packaging requirements are minimal. Experimentally, we demonstrate a resonance wavelength shift of ~1 nm when a monolayer of streptavidin is attached to the surface, in good agreement with calculations based on rigorous coupled wave analysis.

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