Numerical Simulation of Optical Fiber Tamm Plasmon Polariton Sensor Based on D-Shaped Hollow-Core Photonic Crystal Fiber Coated With a Gold Film

• DOI: 10.1109/jsen.2024.3350899
• Publication Date: 2024-01-12T19:01:45Z
• Authors: Xian Zhang; Jinghui Ding; Xiao-Song Zhu; Yi-Wei Shi
• Keywords: Cladding (metalworking); Figure of Merit; Microstructured optical fiber

An optical fiber Tamm plasmon polariton (TPP) sensor based on D-shaped hollow-core photonic crystal (HCPCF) coated with a gold film is proposed. The mechanism of TPP excitation at the interface between 2-D (2DPC) and metal layer explained by calculating dispersion curves electromagnetic field distributions fundamental core mode mode. A narrow resonance peak width only few nanometers appears in band gap HCPCF shifts ambient refractive index (RI) change. theoretical analysis about influence structural parameters performance also carried out. proposed shows maximum sensitivity 3700 nm/RIU figure merit (FOM) 1789 RIU <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$^{{-{1}}}$ </tex-math></inline-formula> , which are much higher than that sensors 1-D (1DPC). feasibility exciting inherent 2DPC cladding its sensing application demonstrated for first time. Besides reported 1DPC, results shown this work will provide new approach to realization sensor.