Figure 1 (image)

Moscow Institute of Physics and Technology

Caption

Biosensor layout (a, c). The waveguide is inside the dielectric substrate. The resonator, realized as a ring waveguide, is positioned at the interface between the dielectric material and the biological fluid that is analyzed. A change in the fluid's refractive index shifts the resonant curve (b).

Credit

Kirill Voronin et al./Sensors

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