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We propose a novel bio-sensor structure composed of slot dual-micro-ring resonators and mono-layer graphene. Based on the electromagnetically induced transparency (EIT)-like phenomenon and the light-absorption characteristics of graphene, we present a theoretical analysis of transmission by using the coupled mode theory and Kubo formula. The results demonstrate the EIT-like spectrum with asymmetric line profile. The mode-field distributions of transmission spectrum are obtained from 3D simulations based on finite-difference time-domain (FDTD) method. Our bio-sensor exhibits theoretical sensitivity of 330 nm/RIU, a minimum detection limit of $3.6\times 10^{-4}$ RIU, the maximum extinction ratio of 4.4 dB, the quality factor of $1.288\times 10^3$ and a compact structure of $15\mu \mathrm{\text{m}}\times 10\mu \mathrm{\text{m}}$. Finally, the bio-sensor’s performance is simulated for glucose solution. Our proposed design provides a promising candidate for on-chip integration with other silicon photonic element.

We present a low-cost, low-power, high efficiency, and portable integrated implementations of a lab-on-chip for magnetic molecular level sensing manipulation, and diagnosis. The design features an all-integrated programmable magnetic coil array for sensing and actuating small magnetic bead objects. The coil array is selectively and dynamically controlled using the smallest permissible vertical coil inductors in this technology. Each cell, composed of the coil and its logical control circuitry, can detect small objects in the order of 1 μm diameter as well as emit eight programmable magnetic field levels for manipulation. All array sensing and driving components are shared to reduce the overall imprint. They are tuned towards the 900 s MHz ISM band and incorporating high-speed serial row/column switching up to 40 MHz for seamless pseudo-parallel operation.