Refractive index sensor based on high-order surface plasmon resonance in gold nanofilm coated photonic crystal fiber
Fan Zhen-Kai1, Fang Shao-Bo2, 3, ‡, Li Shu-Guang4, Wei Zhi-Yi2, 3
       

The loss of the fundamental mode dependance on the operation wavelength for (a) type-1 and (c) type-2, when the analyte refractive index na is 1.33, 1.34, 1.35, 1.36, 1.37, 1.38, and 1.39. The resonance wavelength dependance on the analyte refractive index for (b) type-1 and (d) type-2.