Self-referenced spectroscopy using plasmon waveguide resonance biosensor | Zendy

Farshid Bahrami | Zendy; Mathieu Maisonneuve | Zendy; Michel Meunier | Zendy; J. S. Aitchison | Zendy; Mo Mojahedi | Zendy

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Self-referenced spectroscopy using plasmon waveguide resonance biosensor

Author(s) -

Farshid Bahrami,

Mathieu Maisonneuve,

Michel Meunier,

J. S. Aitchison,

Mo Mojahedi

Publication year - 2014

Publication title -

biomedical optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.362

H-Index - 86

ISSN - 2156-7085

DOI - 10.1364/boe.5.002481

Subject(s) - surface plasmon resonance , materials science , refractive index , biosensor , spectroscopy , optics , surface plasmon , polarization (electrochemistry) , optoelectronics , multi mode optical fiber , resonance (particle physics) , waveguide , plasmon , optical fiber , nanotechnology , chemistry , physics , nanoparticle , quantum mechanics , particle physics

A plasmon waveguide resonance (PWR) sensor is designed, fabricated, and tested for self-referenced biosensing. The PWR sensor is able to support two different polarizations, TM and TE. The TM polarization has a large sensitivity to variations in the background refractive index while the TE polarization is more sensitive to the surface properties. The ability of the PWR sensor to simultaneously operate in both TM and TE modes is used to decouple the background index variations (bulk effects) from the changes in adlayer thickness (surface effects) via multimode spectroscopy. To benchmark the performance of the PWR, a conventional surface plasmon resonance (SPR) sensor is fabricated and tested under the same conditions.

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