Table 1.

Parameters of coupled slot waveguides (effective indices, confinement factors and sensitivities calculated by assuming an aqueous solution as cover medium).

Parameter	Value
Si-wire height (h)	324 nm
Si-wire width (w)	180 nm
Slot gap region width (g)	100 nm
Effective index (quasi-TE)	1.578638
Effective index (quasi-TM)	1.999899
Cover confinement factor (quasi-TE)	0.7644
Cover confinement factor (quasi-TM)	0.4117
Waveguide sensitivity (quasi-TE)	1.0076
Waveguide sensitivity (quasi-TM)	0.4040