Habib Md Ahasan, Abdulrazak Lway Faisal, Magam Musab, Jamal Laiq, Qureshi Khurram Karim
Department of Electrical & Electronic Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh.
Department of Computer Science, Cihan University-Sulaimaniya, Sulaimaniya 46001, Iraq.
Micromachines (Basel). 2022 Apr 25;13(5):670. doi: 10.3390/mi13050670.
In this research, a photonic crystal fiber (PCF)-based sulfuric acid detector is proposed and investigated to identify the exact concentration of sulfuric acid in a mixture with water. In order to calculate the sensing and propagation characteristics, a finite element method (FEM) based on COMSOL Multiphysics software is employed. The extensive simulation results verified that the proposed optical detector could achieve an ultra-high sensitivity of around 97.8% at optimum structural and operating conditions. Furthermore, the proposed sensor exhibited negligible loss with suitable numerical aperture and single-mode propagation at fixed operating conditions. In addition, the circular air holes in the core and cladding reduce fabrication complexity and can be easily produced using the current technology. Therefore, we strongly believe that the proposed detector will soon find its use in numerous industrial applications.
在本研究中，提出并研究了一种基于光子晶体光纤（PCF）的硫酸探测器，以确定硫酸与水混合液中硫酸的准确浓度。为了计算传感和传播特性，采用了基于COMSOL Multiphysics软件的有限元方法（FEM）。大量的模拟结果证实，所提出的光学探测器在最佳结构和操作条件下可实现约97.8%的超高灵敏度。此外，所提出的传感器在固定操作条件下具有合适的数值孔径和单模传播，损耗可忽略不计。此外，纤芯和包层中的圆形气孔降低了制造复杂性，并且可以使用现有技术轻松制造。因此，我们坚信所提出的探测器将很快在众多工业应用中得到应用。
