Design of high-sensitive glucose concentration sensor based on ring-shaped holes photonic crystal cavity
| Autor: | Abdesselam Hocini, Souheil Mouetsi, Abderraouf Hocini |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Detection limit
Materials science Silicon business.industry chemistry.chemical_element 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials 010309 optics chemistry Q factor 0103 physical sciences Optoelectronics 0210 nano-technology business Biosensor Sensitivity (electronics) Refractive index Photonic crystal |
| Zdroj: | Journal of Nanophotonics. 14:1 |
| ISSN: | 1934-2608 |
| DOI: | 10.1117/1.jnp.14.016006 |
| Popis: | A rhombus-shaped holes-based photonic sensor is proposed and analyzed using the finite-difference time-domain method embedded in the commercial simulator RSoft. By changing the refractive indices in the biosensor under testing, the transmission properties of light are changed according to the changes in glucose concentrations. Various sensitivities are obtained and given as 604.5, 589.91, 537.86, and 520.5 nm / RIU, corresponding to both quality (Q) factors as high as 4.414 × 105, 2.1 × 105, 8.34 × 105, and 3.247 × 106 and a detection limit of 5.89 × 10 − 7, 1.27 × 10 − 6, 3.44 × 10 − 7, and 8.99 × 10 − 8, respectively. The obtained results were within the cavity region. Therefore, the Q factor and the sensitivity were significantly improved for the proposed structure, which makes this proposed design a potential and promising label-free biosensing device for the biomedical prognosis. |
| Databáze: | OpenAIRE |
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