Roy, Pretom2024-06-122024-06-122024-06http://dspace.iiuc.ac.bd/handle/123456789/8249This internship report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in B.Sc. Engineering, 2024 Cataloged from the PDF version of the internship reportThis research presents a surface plasmon sensor utilizing photonic crystal fiber (PCF), aiming to measure glucose concentrations in urine. The sensor employs a configuration involving TiO2 and gold as plasmonic materials, layered strategically to enhance its performance. Employing a finite element approach, the proposed sensor's simulation focuses on measuring urine glucose levels. The setup involves coating a thin analyte layer onto the TiO2 layer of the PCF, enabling external sensing capabilities. Sensing capabilities are tested across four distinct glucose concentration levels: 0gm/dL, 2.5gm/dL, 5gm/dL, 10gm/dL, and 20gm/dL equating to refractive indices (RI) of 1.335, 1.338, 1.341, 1.346, and 1.358, respectively. A perfectly matched layer (PML) acts as the boundary condition for the topmost PCF layer. Through variations in geometrical parameters, an optimized structural design is achieved, resulting in a wavelength sensitivity of 3825.61 nm/RIU and an amplitude sensitivity of 438 RIU−1 for 2.5 gm/dL. Experimental validation using various urine samples highlights superior accuracy and sensitivity compared to existing methods.enThesis