This paper presents a theoretical study of a highly sensitive photonic crystal fibre (PCF) surface plasmon resonance (SPR) sensor. The proposed sensor consists of a gold-silver bimetallic structure as a transducing layer in the micro-fluidic slots which ensures optimum spectral sensitivity, low losses and narrow spectral width. The loss spectra and sensitivity of the proposed biosensor have been presented using a full-vector finite element method (FEM) with perfectly matched layers (PML). Typical sensor sensitivity of 3200 nm/RIU with has been demonstrated.
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Akowuah et al. (2012) studied this question.
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