• Multi-channel SPR biosensor based on PCF for multi-analyte sensing applications

      Otupiri, R.; Akowuah, Emmanuel K.; Haxha, Shyqyri; Kwame Nkrumah University of Science & Technology, Ghana; University of Bedfordshire (Optical Society of America, 2015-06-15)
      This paper presents a theoretical investigation of a novel holey fiber (Photonic Crystal Fiber (PCF)) multi-channel biosensor based on surface plasmon resonance (SPR). The large gold coated micro fluidic channels and elliptical air hole design of our proposed biosensor aided by a high refractive index over layer in two channels enables operation in two modes; multi analyte sensing and self-referencing mode. Loss spectra, dispersion and detection capability of our proposed biosensor for the two fundamental modes ( x 11 HE and y 11 HE ) have been elucidated using a Finite Element Method (FEM) and Perfectly Matching Layers (PML).