Gold-ZnO Coated Surface Plasmon Resonance Refractive Index Sensor Based on Photonic Crystal Fiber with Tetra Core in Hexagonal Lattice of Elliptical Air Holes
Robotics, Control and Computer Vision(2023)
摘要
A photonic crystal fiber (
$$PCF$$
)-based surface plasmon resonance (
$$SPR$$
) refractive index (
$$RI$$
) sensor is proposed and presented in this research work. The proposed
$$RI$$
sensor can detect chemicals, analytes, and oil samples falling in the
$$RI$$
range of
$$1.40 \,RIU$$
to
$$1.48 \,RIU.$$
The detection capability of the sensor is investigated employing traditional sensor parameters like “wavelength sensitivity,” “amplitude sensitivity (AS),” “sensor resolution,” and “linear relationship between
$$RI$$
and resonant wavelength.” A combination of noble material Gold (
$$Au$$
) and Zinc oxide (
$$ZnO$$
) is coated as the plasmonic material for electron excitation in the presented sensor design. The sensing parameters obtained from the proposed sensor predict it as a suitable sensor for analytes, household oil, and chemical detection falling in the
$$RI$$
range
$$1.40 \,RIU$$
to
$$1.48 \,RIU.$$
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关键词
Amplitude sensitivity, Photonic crystal fiber (), Surface plasmon resonance (), Wavelength sensitivity, Sensor resolution
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