Computational analysis of nanoparticles for the construction of nanosensors based on localized surface plasmon resonance

摘要

The integration of surface plasmon resonance phenomenon with nanoscale metallic structures has been a good alternative in the sensing area for biomedical applications. Mie theory-based solution provides the extinction, absorption and dispersion coefficients, which depend on the characteristics of the nanoparticles. The metallic nanoparticles can vary in size, shape, and metal type (silver and copper are the most used metals). Here, an numerical analysis attempt to measure the effects of the nanoparticles size on the sensor performance. Mie theory-based analysis results from different nanoparticle sizes are reported, where images of a prototype exhibit gold nanoparticles at the tip of a polymeric optical fiber.