Highly sensitive pressure-induced plasmon resonance birefringence in a silver-coated photonic crystal fiber

Using the finite element method, we have reported simulation and analysis results on the pressure-induced plasmonic loss in a photonic crystal fiber structure containing hexagonal silver-coated holes. We have also demonstrated that this configuration may offer highly sensitive pressure sensing capabilities. By measuring the resonance wavelength difference between two orthogonally polarized fundamental modes, a high sensitivity value of 32.89 nm/N has been achieved in the visible wavelength range. The effect of pitch size and hole diameter variation on the resonance wavelength have been studied in detail as well.

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