Design and Simulation of a Biosensor Based on 2D Photonic Crystalnano-Ring Resonator
Subject Areas : electrical and computer engineering
فریبرز
پرندین
1
Farsad
Heidari
2
Keywords: Photonic crystalsBio-SensorResonator,
Abstract :
In this paper, a biosensor based on a photonic crystal is designed. This sensor has two adjacent circular nano-rings that allow coupling between the waveguides and the nano-ring resonator. A number of dielectric rods have been used to design the sensor, which are located in the water environment. Circular ring resonators have also been used between the input and output waveguides. Also, in order to increase the optical restriction and improve the coupling performance of waveguides and nano-ring resonator, the input and output paths have been used closed end. In the proposed structure, which has a small dimension, the sensing rod is selected so that is has a high quality factor. The simulation results show that the designed biosensor has a high quality factor and by attaching the biomolecule to it, the displacement of the resonant wavelength is well formed. Another feature of the proposed structure is that all dielectric rods have the same radius, which makes it easier to construct the sensor.
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