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Surface plasmon resonance biosensor-based dual-core photonic crystal fiber: design and analysis


A finite element analysis of biosensor-based dual-core photonic crystal fiber is conducted using surface plasmon resonance model and is presented in this article. Calculated wavelength sensitivity of the sensor is around 10,000 nm/RIU and 5000 nm/RIU for x-polarization and y-polarization, respectively, when analyte refractive index is 1.34. Amplitude sensitivity for x-polarization and y-polarization is 334 RIU−1 and 394 RIU−1, respectively. Resolution for both polarizations is 2 × 10–5 RIU. Consequently, the proposed biosensor can detect the low-refractive-index biochemical analyte at different wavelengths.

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Correspondence to D. Rajeswari.

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Arunya Revathi, A., Rajeswari, D. Surface plasmon resonance biosensor-based dual-core photonic crystal fiber: design and analysis. J Opt 49, 163–167 (2020).

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  • Photonic crystal fiber (PCF)
  • Surface plasmon resonance (SPR)
  • Biosensor
  • Finite element method (FEM)