Harmful food preservative detection: Advanced terahertz-PCF sensor design

This model featured a novel hollow core photonic crystal fiber (HC-PCF) with an unmatched cobweb-shaped coating that and hexagon core that is specifically made for detecting harmful food additives like butyl acetate, sorbitol, and saccharin. We assess other crucial optical properties by examining the refractive index (RI) fluctuations caused by hazardous food additives. The Finite Element Method (FEM) in COMSOL Multiphysics v6.1 is used to analyze the properties of the proposed hazardous food additives detector. The inclusion of extremely accurate mesh components ensures the best possible simulation accuracy. The inclusion of extremely accurate mesh elements ensures the best possible simulation accuracy. Performed at 2 THz, the results from the suggested detector design show remarkably high relative sensitivity of 99.23% for saccharin, 98.89% for sorbitol, and 98.48% for butyl acetate. In addition, the simulation demonstrates that, under optimum conditions for structure, saccharin has an extremely low confinement loss of 1.31 × 10 −07 cm⁻¹, a numerical aperture of 0.274, an effective area of 8.7899 × 10⁻⁸ m², and an effective material loss of 0.00264 cm⁻¹. Given these common performance indications, the detector's simple PCF design suggests that it can be easily implemented. As a result, it is expected that this sensor will provide better ways to identify and detect several distinct harmful food additives. Standard fabrication techniques can be used to make it.