The properties of light and its interaction with biological analytes have made it possible to design sophisticated and reliable optical-based biomedical sensors. In this paper, we report the simulation, design, and fabrication of microring resonator (MRR)-based sensors for the detection of diabetic glucose levels. Electron Beam Lithography (EBL) with 1:1 hydrogen silsesquioxane (HSQ) negative tone resist were used to fabricate MRR on a Silicon-on-Insulator (SOI) platform. Scanning Electron Microscopy (SEM) was then used to characterize the morphology of the MRR device. The full-width at half-maximum (FWHM) and quality factors of MRR were obtained by using a tunable laser source (TLS) and optical spectrum analyzer (OSA). In this paper, the three-dimensional Finite Difference Time Domain (3D FDTD) approach has been used to simulate the proposed design. The simulation results show an accurate approximation with the experimental results. Next, the sensitivity of MRR-based sensors to detect glucose levels is obtained. The sensitivity value for glucose level detection in the range 0% to 18% is 69.44 nm/RIU. This proved that our MRR design has a great potential as a sensor to detect diabetic glucose levels.

Tropical cyclone which occurred in Indian Ocean can affected the weather parameters such as temperature, pressure, and humidity in some regions in Indonesia. Universitas Pendidikan Indonesia which located in West Java is one of the region that the affected by tropical cyclone. Therefore, the study to learn how tropical cyclones affected temperature, pressure, and humidity in Universitas Pendidikan Indonesia is needed. The study was done by processing the data generated through the Automatic Weather Station then analize the behavior of the weather parameters such as temperature, pressure, and humidity in the area of Universitas Pendidikan Indonesia throughout 15th November 2017 until 15th December 2017. This study concluded that the tropical cyclone can affected the weather parameters such as temperature, pressure, and humidity in the area of Universitas Pendidikan Indonesia.