Computation of resonant frequencies and quality factors of open dielectric resonators by a combination of the finite-difference time-domain (FDTD) and Prony's methods

1992 ◽  
Vol 2 (11) ◽  
pp. 431-433 ◽  
Author(s):  
J.A. Pereda ◽  
L.A. Vielva ◽  
A. Vegas ◽  
A. Prieto
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Dielectric Resonators ◽  
Quality Factors ◽  
Resonant Frequencies ◽  
Difference Time

scholarly journals Enhanced Sensitivity of Microring Resonator-Based Sensors Using the Finite Difference Time Domain Method to Detect Glucose Levels for Diabetes Monitoring

2020 ◽  
Vol 10 (12) ◽  
pp. 4191
Author(s):  
Lilik Hasanah ◽  
Harbi Setyo Nugroho ◽  
Chandra Wulandari ◽  
Budi Mulyanti ◽  
Dilla Duryha Berhanuddin ◽  
...  
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Microring Resonator ◽  
Silicon On Insulator ◽  
Laser Source ◽  
Quality Factors ◽  
Simulation Design ◽  
Glucose Levels ◽  
Difference Time

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.

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