SPR Sensor-Based Sensitivity Performance Investigation Using an H-Shaped Model with Supportive Metal Variation
| Autor: | Amrita Kamkar, Kawsar Ahmed, Fahad Ahmed Al Zahrani, Mirza Sanjida Alam |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Permittivity
Analyte Materials science business.industry Annealing (metallurgy) Biophysics 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry 010309 optics Metal visual_art 0103 physical sciences visual_art.visual_art_medium Optoelectronics Sensitivity (control systems) Thin film Surface plasmon resonance 0210 nano-technology business Refractive index Biotechnology |
| Zdroj: | Plasmonics. 16:1327-1337 |
| ISSN: | 1557-1963 1557-1955 |
| DOI: | 10.1007/s11468-021-01391-z |
| Popis: | This study demonstrates considerable sensitivity response using different materials for an H-shaped surface plasmon resonance (SPR) sensor. The phenomenon provides selective sensitivity response with different organic materials. The structure consists of coupled metal along with an analyte. Analyte that employs the SPR effects which is sensitive to material changes with the surrounding refractive index. The optical properties of used metals are evaluated on the emerged permeability and permittivity ascertained by the combined Drude and Lorentz model. Varieties of some organic materials to control the SP are investigated. Annealing of gold, palladium, titanium, and silver thin films, the model is formed. These metals can monitor the sensitivity changes of the concentration on the surface of sensor. In this study, the range of wavelength is 320–620 nm with an achieved refractive index of 1.37–1.42. The evaluated sensitivity is maximum while for silver among various metals which is almost $$\sim$$ 2.17 × 104 nm/RIU. |
| Databáze: | OpenAIRE |
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