Plasmonic Resonances Associated with Distinct Conducting Layers Deposited on a D-Shaped Photonic Crystal Fiber: An Analysis for Sensing Purpose

The spectral response of a SPR (surface plasmon resonance) sensor depends on the engineering of the conducting layer. In this paper, we analyze theoretically the spectra of a D-shaped SPR PCF (photonic crystal fiber) refractive index sensor considering four different plasmonic materials: Ag, Au, Ga-doped zinc oxide (GZO) and an Ag-nanowire metamaterial. The sensing properties provided by each material and how they form the bases to design multiplasmonic resonance sensors are the focus of our discussion.