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We propose a plasmonic refractive index-sensitive nanosensor based on the electromagnetically induced transparency (EIT) of waveguide resonator systems. The structure consists of one tooth-shaped cavity as well as the bus and stub metal-insulator-metal waveguides. By adjusting the structural geometry, it is demonstrated that the controllable transmission of EIT response can be obtained with the finite-difference-time-domain...
We develop the temporal coupled mode theory for the ring-bus-ring device by taking account of the energy-conservation. The presence of the center waveguide in the tri-coupler section of the RBR facilitates the interaction between the two side-coupled rings. The correspondence between the coupled mode theory in time and transfer matrix formalism (TMF) is established. A very good agreement is obtained...
In this paper, we present the theoretical study of ring-bus-ring coupled into Mach-Zehnder interferometer (RBR-MZI) device, which is capable of generating transparent window analogy to the electromagnetically induced transparency (EIT) phenomenon in atomic system. The RBR is a new class of two-resonator system, where the inter-cavity interaction is facilitated by a tri-coupler, instead of conventional...
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