Computational analysis of core cavity Mach-Zehnder interferometer based optical sensor for various types of virus

Sundaresan, Vishalatchi Saravana; Ramrao, Nagaraj ; Sharan, Preeta ; Murugan, Kalpana


In this effort, the demonstration has been done for designing the new optical sensor for the detection of various viruses. In this design, we have revealed about Photonic crystal based CCMZIs (Core Cavity Mach-Zehnder interferometers) structures namely CCMZI_1, CCMZI_2, CCMZI_3, and CCMZI_4. These structural designs are commonly referred here as CCMZI_X cavity sensors where X denotes the gradual decrement of scattering rods present in the cavity sensors. By selecting four types of viruses we are interested to detect these viruses in bio-sample using the device, CCMZI_X based sensor for light wave propagation. It has been found that, while removing the number of rods in the structure distinct transmission patterns are obtained. By the consideration of the sensitivity part, further simulation has been done by using the signature of the viruses. The analysis of virus existence is simulated in the FDTD tool. The optimization has been done to provide the higher amplitude spectrum with the range up to 0.8712 and the sensitivity can be calculated in the range of 200-250µm which are obtained by comparing the structures having corresponding analytes.



Photonic crystal, FDTD, Mach-Zehnder, virus analysis, Optical sensor, HIV

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