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A numerical analysis of a novel birefringent photonic crystal fiber (PCF) biosensor\ud constructed on the surface plasmon resonance (SPR) model is presented in this paper.\ud This biosensor configuration utilizes circular air holes to introduce birefringence into\ud the structure. This PCF biosensor model shows promise in the area of multiple detection\ud using HEx\ud 11 and HEy\ud 11 modes to sense more than one analyte. A numerical study of the biosensor\ud is performed in two interrogation modes: amplitude and wavelength. Sensor resolution\ud values with spectral interrogation yielded 5 10 5 RIU (refractive index units) for\ud HEx\ud 11 modes and 6 10 5 RIU for HEy\ud 11 modes, whereas 3 10 5 RIU for HEx\ud 11 modes\ud and 4 10 5 RIU for HEy\ud 11 modes are demonstrated for the amplitude interrogation

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 (

Abstract:A theoretical study on a novel planar waveguide surface Plasmon Biosensor is presented in this paper. The proposed biosensor has a configuration similar to the Otto excitation mechanism for surface Plasmon polaritons. The performance of the device with respect to key system parameters such as gap -width and device length is investigated using an eigenmode solver with perfectly matched layers (PML). Device resolution of 2.3×10-6 RIU has been demonstrated for an aqueous analyte.

A numerical analysis of a hexagonal PCF structure with four circular air hole rings around the core has been presented in this paper. By utilizing a full vectorial finite element method with perfectly matched layers, propagation properties such as birefringence, chromatic dispersion and confinement losses are numericaly evaluated for the proposed PCF structure. Specifically, birefringence of 2.018 × 10–2, nonlinear coefficients of 40.682 W−1 km−1, negative chromatic dispersion of − 47.72 ps/km.nm at 1.55 µm and − 21 to − 105 ps/km.nm at the telecommunication band of C-U have been reported.