Graphene-Coated Microring Resonator (MRR)-Based Gas Sensor Using Novel Intensity-Level Detection for Low-Cost, Rapid, and Label-Free Sensing: Preliminary Simulated Results

• Main Authors: Soria, Kent C., Dingel, Benjamin, Villarde, Jezlor, Lapina, Ramon C., Esporlas, Cindy Lisa, Villacruz, Luther, Urbano, Kryss, Palabrica, Francesca, Bennett, Clint Dominic
• Format: text
• Published: Archīum Ateneo 2024
• Subjects: Physical Sciences and Mathematics; Physics
• Online Access: https://archium.ateneo.edu/physics-faculty-pubs/172; https://doi.org/10.46620/URSIATRASC24/CFGZ1110
• Institution: Ateneo De Manila University

Almost all current microring resonator (MRR) based sensors rely on a wavelength shift detection scheme. This involves (i) expensive tunable lasers as an input source and (ii) optical spectrum analyzers as a detector, which leads to overall bulky configuration, high cost, and complex arrangement. Here, we propose a low-cost, tapered waveguide MRR-based gas sensor that uses a simple intensity-level detection method. It employs (1) a low-cost laser source and (2) a photodetector. The MRR is coated with graphene to detect the specific target element. This design can significantly reduce the overall cost and complexity of the sensing system.