Abstract
Microfluidic technology has been widely used in biomedical science and chemical reaction analyses. Here, we demonstrate dynamical spectral tuning in a metallic nanograting by the integration of a microfluidic device, potentially interesting for plasmonic color applications. The linear relationship between the wavelength of the transmission minimum and refractive index is found, and the influence of period, film thickness, and filling factor to refractive index sensitivity are systematically studied. The fabricated device confirms the prediction of simulation results. To increase refractive index sensitivity, optimizing this device by choosing appropriate structure parameters is possible, which reveals the great potential of such device for dynamic spectral tuning and refractive index sensing of industry applications.
Published Version
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