A silicon SWG slot waveguide with PHMB in the slot achieves CO2 sensitivity of 12.9 pm/ppm by strong light confinement in the functional material.
In the following subsections, we investigate the effect of geometrical parameters on the transmission resonances of the proposed structure
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Transmission resonances in silicon subwavelength grating slot waveguide with functional host material for sensing applications
A silicon SWG slot waveguide with PHMB in the slot achieves CO2 sensitivity of 12.9 pm/ppm by strong light confinement in the functional material.