Hexagonal two layers-photonics crystal fiber based on surface plasmon resonance with gold coating biosensor easy to fabricate

Abstract

<span>In this paper, we investigate a hexagonal two-layer photonic crystal fiber based on surface plasmon resonance (HT-PCF-SPR) which is easy to fabricate as a sensor for detecting the refractive index of analytes. After performing numerical simulations using COMSOL multiphysics based on the finite element method (FEM), it was found that the HT-PCF-SPR could detect the analyte's refractive index in the range 1.34-1.37 RIU and in the wavelength range from 730 nm to 810 nm. The plasmonic material used in the design is gold with a thickness of 40 nm which is located outside the layer and in two opposite air holes in the core. The HT-PCF-SPR design has good performance in detecting analytes, it is found that the sensitivity in detecting analytes is 2,000 nm/RIU, meaning that every 1 RIU shift of analyte shifts the wavelength by 2000 nm. Meanwhile, the sensor resolution obtained from the design is 6.67×10-5 RIU, and it is found that the larger the air hole, the greater the confinement loss value.</span>

Dual-Polarized PCF-SPR Sensor for Alcohol Detection at Low Temperature

“…The plasmonic material used to elicit the SPR effect on the PCF, the plasmonic material used in this study is gold, gold is chemically more stable than the environment but shows a wide resonance peak and this will harm the components. The Drude-Lorentz model is used to calculate the dielectric constant of gold which can be shown in equation 2 (Irawan, Ramadhan, Saktioto, Fitmawati, et al, 2022a).…”

“…This component has an air cavity around the core and cladding. With the presence of this air cavity, a phenomenon that can be used in the world of communication and optical sensing (Irawan et al, 2022a). In the world of communication to produce PCF supercontinuum components, it has a high birefringence and has a material loss that can be adjusted according to its needs.…”

Design of PCF-SPR for Early Detection of Skin Cancer Infected Cells

“…Optical components continue to be of interest to many industries and researchers to be used as sensor components in the fields of medical, defense and security, food security, agriculture, aircraft industry, and sensing in disaster. optical components utilize light to transmit information so that they work in the wavelength domain, some of the optical components have been sold commercially and some are still undergoing development (Irawan D, 2014) Some optical components that are often used as sensors are SMF optical fiber (Saktioto et al, 2021b;Irawan, Azhar, et al, 2022;Ramadhan & Saktioto, 2021), Multi-mode fiber (MMF), Fiber Bragg Grating (FBG) (Saktioto et al, 2021a) and photonic crystal fibers (Irawan et al, 2022a;Irawan et al, 2022b), (Ramadhan, 2020). Photonic crystal fiber technology combined with the phenomenon of surface plasmon resonance continues to experience significant developments in the sensor world.…”