Hybrid waveguide based long-range surface plasmon biosensor

Hooman Mohseni, Youqiao Ma, Gerald Farrell, Yuliya Semenova, Qiang Wu, Massoud H. Agahi, Manijeh Razeghi

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Citations (Scopus)


An integrated hybrid waveguide coupled long range surface plasmon polaritons (LRSPPs) biosensor is proposed and analyzed by the Finite Element Method (FEM). The influence of the structural parameters on the coupling between the dielectric waveguide (DWG) and LRSPPs modes are numerically investigated. Simulation results show that the resonant coupling wavelength between the DWG and LRSPPs modes is very sensitive to small refractive index changes i.e. the estimated sensitivity is as high as 4180 nm/RIU (refractive index unit). Furthermore, when operating in intensity interrogation, its detection of limit has been shown as small as 3.7 x 10-7 RIU.
Original languageEnglish
Title of host publicationProceedings of SPIE 8812, Biosensing and Nanomedicine VI
EditorsHooman Mohseni, Massoud H. Agahi, Manijeh Razeghi
Place of PublicationBellingham
ISBN (Print)9780819496621
Publication statusPublished - 11 Sept 2013
EventBiosensing and Nanomedicine VI - San Diego
Duration: 11 Sept 2013 → …


ConferenceBiosensing and Nanomedicine VI
Period11/09/13 → …


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