A high-sensitivity biosensor based on metal–insulator–metal and rectangular resonator for biochemical detection
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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
University of Oum El Bouaghi
Abstract
Herein, a refractive index sensing based on a novel design of rectangular cavity couple with defect nanorod (RCDN), using metal-insulator-metal (MIM) waveguide is suggested for biochemical application. Herein, the optimized cavity design can provide the best sensing performance. In this work, we have numerically simulated with Finite-Difference- Time-Domain (FDTD) method, by varying small change in the geometric parameter we can bring a significant shift in the sensitivity of the device, also we can manipulate the resonance wavelength. The high sensitivity of the biosensor is 2035
nm/RIU. This device can be utilized in the on-chip detection of biochemical such glucose in water and cancer cells with high sensitivity.
Description
Keywords
Refractive Index (RI); Metal-insulator-metal (MIM); Near-infrared (NIR) and mid-infrared (MIR); Finite- Difference-Time-Domain (FDTD); biosensor